World of Coins

Design and designing => Coin characteristics => Topic started by: <k> on May 31, 2011, 06:04:48 PM

Title: Circular coins that have an inner polygonal rim
Post by: <k> on May 31, 2011, 06:04:48 PM
The first coin I noticed with an inner polygonal rim was the French two francs coin, which was introduced in 1979.
Title: Re: Circular coins that have an inner polygonal rim
Post by: <k> on May 31, 2011, 06:10:23 PM
In recent years, some countries have been replacing their polygonal coins with round coins that have an inner polygonal rim. Fiji is a good example. Some say that this is because vending machines have difficulty with polygonal coins. However, I don't believe that. Here in the UK, vending machines always accept my 20p and 50p coins without any problem.



(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=26954.0;attach=44495;image)

 
Title: Circular coins that have an inner polygonal rim
Post by: Bimat on May 31, 2011, 06:12:25 PM
Bahrain 500 Fils.

(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=9277.0;attach=12725;image)

Aditya
Title: Re: Circular coins that have an inner polygonal rim
Post by: <k> on May 31, 2011, 06:13:15 PM
The East Caribbean States joined the trend around 2002.
Title: Re: Circular coins that have an inner polygonal rim
Post by: Abhay on May 31, 2011, 06:14:26 PM
Indian 1 and 2 rupee coins fit this category. While 1 rupee coin has 7 sided polygon, the 2 rupee coin has 11 sided polygon.

Abhay
Title: Re: Circular coins that have an inner polygonal rim
Post by: <k> on May 31, 2011, 06:26:22 PM
The Susan B Anthony dollar is another example from the 1970s.
Title: Circular coins that have an inner polygonal rim
Post by: Bimat on May 31, 2011, 06:29:46 PM
Nice one, Aditya - a bimetallic version of an inner polygonal rim. I wonder if it's unique?
This NLT from Cabinda commemorates 35th anniversary of Cabinda's independence. Interesting thing is that only obverse has a polygonal rim! I'm sure they must have spent a lot of money for its production. ::)

(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=8998.0;attach=12212;image)

Aditya
Title: Re: Circular coins that have an inner polygonal rim
Post by: Abhay on May 31, 2011, 06:33:22 PM
So India issued these a bit earlier than the South African ones. An early adopter, then.  8)

The 1 rupee coin was first issued in 1983 while the 2 rupee coin was issued in 1982.

Abhay
Title: Re: Circular coins that have an inner polygonal rim
Post by: <k> on May 31, 2011, 06:34:40 PM
The 1 rupee coin was first issued in 1983 while the 2 rupee coin was issued in 1982.

Abhay

So that's not long after France, then. I wonder what is the earliest one we will find for any country?
Title: Re: Circular coins that have an inner polygonal rim
Post by: Abhay on May 31, 2011, 06:39:40 PM
So that's not long after France, then. I wonder what is the earliest one we will find for any country?

I think it has to be India. The coins issued by Shah Jahan (1628-1658 AD) had a square border.

Abhay
Title: Circular coins that have an inner polygonal rim
Post by: Bimat on May 31, 2011, 06:40:58 PM
Nice one, Aditya - a bimetallic version of an inner polygonal rim. I wonder if it's unique?
Found another legal tender: Taiwan 20 Dollars

(http://en.numista.com/catalogue/photos/taiwan/g65.jpg)(http://en.numista.com/catalogue/photos/taiwan/g66.jpg)

Aditya
Title: Re: Circular coins that have an inner polygonal rim
Post by: chrisild on May 31, 2011, 06:44:32 PM
You may have seen the 5 DM "Magnimat" coin that replaced the earlier silver piece here in 1975 ...

Christian
Title: Re: Circular coins that have an inner polygonal rim
Post by: chrisild on May 31, 2011, 06:46:08 PM
Now why does that belong here? Well, it doesn't. But Wolfgang Doehm's original design (image from the Jaeger catalog) sure looked a little different. That "had to be modified" then for technical reasons. ::)

Christian
Title: Circular coins that have an inner polygonal rim
Post by: Bimat on May 31, 2011, 07:05:48 PM
Latest issue from Peru:

(http://jeroja6.files.wordpress.com/2011/05/moneda-peru-monasterio-santa-catalina.jpg?w=640&h=480)

Aditya
Title: Re: Circular coins that have an inner polygonal rim
Post by: <k> on May 31, 2011, 07:55:08 PM
(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=9114.0;attach=79332;image)



(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=13166.0;attach=79334;image)



In the 1990s Malta went in the opposite direction, and gave an inner polygonal rim to two coins that had previously been round. Presumably this would have made them easier to distinguish from the other coins in the series.

 
Title: Re: Circular coins that have an inner polygonal rim
Post by: Figleaf on June 01, 2011, 01:33:18 AM
Quite a few Israeli coins have that feature.

Peter
Title: Re: Circular coins that have an inner polygonal rim
Post by: <k> on June 01, 2011, 03:01:52 AM
Modern Israel - I believe you are older than that country.  ;D

It seems it issued a few PIRs back in 1960. Can we find any earlier ones than this?

(http://en.numista.com/catalogue/photos/israel/g154.jpg)



Here's a more modern one, that looks rather unusual.

(http://en.numista.com/catalogue/photos/israel/g392.jpg)



Off-topic now, because this one is scalloped and not circular, but it's the only example I've seen of a scalloped coin with an inner rim, and a squarish one at that.

(http://en.numista.com/catalogue/photos/israel/g34.jpg)
Title: Re: Circular coins that have an inner polygonal rim
Post by: <k> on June 02, 2011, 01:06:19 AM
An unusual one from Egypt: obverse and reverse are different

(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=9985.0;attach=14345;image)
Title: Re: Circular coins that have an inner polygonal rim
Post by: <k> on June 02, 2011, 01:07:46 AM
And Mexico too!
Title: Re: Circular coins that have an inner polygonal rim
Post by: Prosit on June 02, 2011, 06:45:19 PM
The "thematic collecting" section has gotten extensive enough that it can be a decent tool to identify some un-identified coins.
Excellent!

Dale
Title: Re: Circular coins that have an inner polygonal rim
Post by: <k> on June 02, 2011, 06:47:16 PM
All the coins of Cuba's convertible set have an inner polygonal rim.

Cuba appears to be unique in the world, in that it has two different sets of circulation coins: a set of boring designs for its own people, and a jazzier hard currency set for its foreign tourists.
Title: Re: Circular coins that have an inner polygonal rim
Post by: <k> on June 06, 2011, 05:15:48 PM
Here is an interesting example of Notgeld (emergency money) from Saxony, made of porcelain, and not metal. You could even say it was bi-porcellanic!

Title: Circular coins that have an inner polygonal rim
Post by: Bimat on June 21, 2011, 10:59:55 AM
Aruba. (Please ignore the coin on left side ;D)

Not my coin, image posted elsewhere by AJG.

(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=4570.0;attach=7262;image)

Aditya
Title: Re: Circular coins that have an inner polygonal rim
Post by: <k> on August 13, 2011, 10:22:01 PM
Norway, 10 kroner, 1985.
Title: Re: Circular coins that have an inner polygonal rim
Post by: <k> on August 13, 2011, 10:33:18 PM
Yugoslavia, 50 dinars, 1993.  In fact, all the coins of the one year circulation set issued in 1993 had an inner polygonal rim. At the time, rump Yugoslavia was suffering rampant inflation because of the war(s). This attempt to fix it did not work.
Title: Re: Circular coins that have an inner polygonal rim
Post by: adam on August 14, 2011, 03:49:22 PM
Thailand, 5 baht, both 1988 type & 2008 type.

(http://en.numista.com/catalogue/photos/thailande/13.jpg)(http://en.numista.com/catalogue/photos/thailande/14.jpg)

(http://en.numista.com/catalogue/photos/thailande/g582.jpg)(http://en.numista.com/catalogue/photos/thailande/g583.jpg)

Title: Re: Circular coins that have an inner polygonal rim
Post by: <k> on December 22, 2011, 10:10:31 PM
The new 2011 coins from Swaziland now have either a scalloped or polygonal inner rim (apart from the 1 lilangeni, which remains round), whereas previously some were actually scalloped or polygonal.
Title: Re: Circular coins that have an inner polygonal rim
Post by: <k> on January 04, 2012, 07:58:59 PM
At first glance the Kyrgyzstan 10 som coin of 2009 appears to be seven-sided (like the UK 50 pence coin). In fact, it is round but with an inner polygonal rim.
Title: Re: Circular coins that have an inner polygonal rim
Post by: <k> on May 25, 2012, 11:24:44 PM
El Salvador, 10 centavos, 1995.  This series actually started in 1988. It is unusual because the obverse has an inner polygonal rim, while the reverse is a standard circular format.
Title: Re: Circular coins that have an inner polygonal rim
Post by: <k> on May 25, 2012, 11:25:47 PM
El Salvador, 5 centavos, 1991.
Title: Re: Circular coins that have an inner polygonal rim
Post by: <k> on May 25, 2012, 11:27:46 PM
Venezuela copied the trick in its design series starting 1998: one side with a polygonal inner rim, the other side standardly round.

Venezuela, 100 bolivares, 2001.
Title: Re: Circular coins that have an inner polygonal rim
Post by: izotz on May 26, 2012, 06:33:19 PM
Spain KM#829 200 Pesetas (1986-1988)
(http://worldcoingallery.com/countries/img9/164-829.jpg)
Title: Re: Circular coins that have an inner polygonal rim
Post by: <k> on June 16, 2012, 03:51:12 PM
Lebanon, 5 piastres, 1924.
Title: Re: Circular coins that have an inner polygonal rim
Post by: chrisild on June 16, 2012, 04:37:14 PM
(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=17769.0;attach=26939;image)

The Colombian 500 pesos coin (only the "frog side") is a candidate too.

Christian

 
Title: Circular coins that have an inner polygonal rim
Post by: Bimat on July 03, 2012, 05:20:48 PM
Peru 1 Nuevo Sol (2012):

(http://2.bp.blogspot.com/-tYaeSBhfQTM/T_Kx13qnFoI/AAAAAAAACQc/gpb5S2MxTKA/s1600/peru1sol2012fuerte.jpg)

Aditya
Title: Re: Circular coins that have an inner polygonal rim
Post by: <k> on September 25, 2012, 07:25:05 PM
(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=8770.0;attach=69689;image)

Seychelles, 5 rupees.

 
Title: Re: Circular coins that have an inner polygonal rim
Post by: andyg on September 25, 2012, 08:31:06 PM
Do these belong here....
Title: Re: Circular coins that have an inner polygonal rim
Post by: <k> on September 25, 2012, 08:38:14 PM
Two of them do.
Title: Re: Circular coins that have an inner polygonal rim
Post by: andyg on September 25, 2012, 08:42:47 PM
they are very similar to the Swaziland coins up thread - I can't think of anywhere else (other than the aforementioned Swaziland coins) that started with a scalloped/ 7 sided coin - changed it to round but kept the original design exactly as it was.

Oddly with the Jamaican series the 1 Dollar got heavier - the 10 Dollars got lighter....
Title: Re: Circular coins that have an inner polygonal rim
Post by: andyg on September 25, 2012, 11:28:50 PM
From scalloped to round? No, I can't think of any others right now.

Sorry, wasn't too clear with what I meant - that is,  started with a scalloped/ 7 sided coin - changed it to round but kept the original design exactly as it was.

Oddly with the Jamaican series the 1 Dollar got heavier - the 10 Dollars got lighter....
Title: Circular coins that have an inner polygonal rim
Post by: Bimat on October 21, 2012, 08:32:36 AM
Algeria 200 Dinar (2012): 50th Anniversary of Independence.

(http://3.bp.blogspot.com/-fDYRLdR3F8o/T_RfE66bYqI/AAAAAAAACSk/l_cZubyaXww/s1600/argelia200din.jpg)

Aditya
Title: Re: Circular coins that have an inner polygonal rim
Post by: chrisild on October 21, 2012, 10:41:17 AM
Sorry, wasn't too clear with what I meant - that is,  started with a scalloped/ 7 sided coin - changed it to round but kept the original design exactly as it was.

Mexico did something that comes close. Until 2008 the lower denominations were round but had a polygonal or scalloped rim. In 2009 the 10, 20 and 50 centavos got a new (smaller) size, with a plain "same width" rim. The image (http://lh4.ggpht.com/_0ZnTiC4CTEc/TSn00GN-lQI/AAAAAAAABoo/gnCWe9Q_Dlg/s800/50-20-10-centavos_02.jpg) (click the link if the coins are not displayed below) shows the old coins at the bottom, and the new ones at the top ...

Christian

(http://lh4.ggpht.com/_0ZnTiC4CTEc/TSn00GN-lQI/AAAAAAAABoo/gnCWe9Q_Dlg/s800/50-20-10-centavos_02.jpg)
Title: Re: Circular coins that have an inner polygonal rim
Post by: <k> on October 27, 2012, 05:32:56 PM
India, 100 rupees, 1980.  A very unusual inner shape.
Title: Re: Circular coins that have an inner polygonal rim
Post by: <k> on November 08, 2012, 10:14:13 PM
(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=39617.0;attach=89265;image)

Argentina, 1989.

1   austral.       Old Buenos Aires City Hall.
5   australes.   Independence Hall at Tucuman.
10 australes.   Casa del Acuerdo.

 
Title: Re: Circular coins that have an inner polygonal rim
Post by: <k> on November 08, 2012, 10:15:43 PM
(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=44929.0;attach=88358;image)



(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=44929.0;attach=88359;image)

Singapore, 1 dollar, 1986.

 
Title: Re: Circular coins that have an inner polygonal rim
Post by: <k> on November 08, 2012, 11:41:29 PM
Nearly all the coins in the modern South African series have an inner polygonal rim.



(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=40537.0;attach=76899;image)



(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=40537.0;attach=76900;image)



(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=40537.0;attach=76901;image)



(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=17663.0;attach=73216;image)



(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=39617.0;attach=88767;image)



(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=17663.0;attach=73220;image)



10c.  Arum lily.                         
20c.  King Protea.                       
50c.  Stralitzia.                        
1R.    Springbok.                   
2R.    Head of greater kudu.   
5R.    Black wildebeest.

 
Title: Re: Circular coins that have an inner polygonal rim
Post by: <k> on February 22, 2013, 11:46:09 PM
Singapore, 1 dollar, 2013.  And bimetallic too!



(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=18887.0;attach=32705;image)
Title: Re: Circular coins that have an inner polygonal rim
Post by: <k> on March 22, 2013, 10:18:30 PM
(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=27138.0;attach=44854;image)

Portugal, 2.5 euros, 2013.  100th Anniversary of the first Portuguese submarine: Espadarte.

Most unusual. The inner rim is half scalloped and half round. Are there any other coins like this?
Title: Re: Circular coins that have an inner polygonal rim
Post by: <k> on January 17, 2014, 01:25:22 AM
(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=33306.0;attach=72600;image)

Yemen, 10 rials, 1993.



(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=33306.0;attach=77774;image)

 
Title: Re: Circular coins that have an inner polygonal rim
Post by: <k> on January 17, 2014, 01:33:19 AM
(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=23561.0;attach=72616;image)

Syria, 2 pounds, 1996, depicting the Roman amphitheatre at Bosra.  The inner rim is 13-sided.

 
Title: Re: Circular coins that have an inner polygonal rim
Post by: <k> on January 17, 2014, 01:35:30 AM
(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=13636.0;attach=72612;image)

Syria, 5 pounds, 1996, featuring the Citadel of Aleppo. 

Nobody would mistake this for a true 5-sided coin, but I wonder if there are any others like it?

 
Title: Re: Circular coins that have an inner polygonal rim
Post by: <k> on January 17, 2014, 01:40:26 AM
(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=25572.0;attach=72661;image)

Oman, 100 baiza, 1984.

 
Title: Re: Circular coins that have an inner polygonal rim
Post by: SquareEarth on January 17, 2014, 02:47:30 AM
Singapore's Floral series $1 coin, 1986 design(original) and 1987-2013 design (though Coat of Arms was changed halfway)
You can see that the original design bore a polygonal rim only on the reverse side.
Sorry for the watermark. Anyone can find a better image for the 1986 coin?
(http://web.archive.org/web/20151110195137/http://imagizer.imageshack.us/v2/800x600q90/46/aqss.jpg)
(http://web.archive.org/web/20151110195153/http://imagizer.imageshack.us/v2/800x600q90/850/xvpd.jpg)
Title: Re: Circular coins that have an inner polygonal rim
Post by: <k> on January 17, 2014, 12:39:12 PM
Yes, it's a nice design.



Singapore's Floral series $1 coin, 1986 design(original) and 1987-2013 design (though Coat of Arms was changed halfway)
You can see that the original design bore a polygonal rim only on the reverse side.

Below are some existing circulation coins with that feature. Does anybody know of any more?



(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=10007.0;attach=14347;image)

Mexico, 10 centavos, 1992.



(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=9985.0;attach=14345;image)

Egypt, 5 piastres, 1992.



(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=10007.0;attach=88759;image)(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=10007.0;attach=88760;image)

Venezuela, 100 bolivares, 2001.

 
Title: Re: Circular coins that have an inner polygonal rim
Post by: dheer on September 15, 2015, 06:24:34 PM
India Rs 50 and Rs 5 - Golden Jubilee of 1965 Operations

Title: Re: Circular coins that have an inner polygonal rim
Post by: Jostein on January 02, 2016, 11:58:11 AM
SPAIN: 500 pesetas coin 1987-2001
(http://web.archive.org/web/20130715002944/http://www.mundoeconomia.es/wp-content/uploads/2013/05/500_b_n.gif)
One of the highest face value minted as coin in the world (aprox.€3,00)


SPAIN: 200 pesestas coin 1986-1988
(http://www.coindatabase.com/pic/w250/img/591pix_SpanishCoins/200p_JC1_rev_1986.jpg)
This was an small coin in relation with his "high" face value, was even smaller than the previous minted coin of 100 pesetas. Was replaced by a higher size 200 pesetas coin in 1990.

 ;)
Title: Re: Circular coins that have an inner polygonal rim
Post by: <k> on March 05, 2019, 11:25:55 AM
(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=43790.0;attach=85655;image)

Morocco, 2 dirhams, 2002.
Title: Re: Circular coins that have an inner polygonal rim
Post by: <k> on March 20, 2019, 03:54:17 PM
(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=44050.0;attach=86223;image)

Samoa, 10 sene, 2011.
Title: Re: Circular coins that have an inner polygonal rim
Post by: <k> on March 20, 2019, 03:54:42 PM
(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=44050.0;attach=86224;image)

Samoa, 20 sene, 2011.
Title: Re: Circular coins that have an inner polygonal rim
Post by: <k> on March 20, 2019, 03:55:01 PM
(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=44050.0;attach=86225;image)

Samoa, 50 sene, 2011.
Title: Re: Circular coins that have an inner polygonal rim
Post by: <k> on March 20, 2019, 03:56:01 PM
(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=44936.0;attach=88370;image)

The reverse of the Samoa 10 and 20 sene coins of 2011 have an inner scalloped rim, but the obverse of each has a standard circular inner rim.



See: Coins with different rim types on obverse and reverse (http://www.worldofcoins.eu/forum/index.php/topic,44936.0.html).
Title: Re: Circular coins that have an inner polygonal rim
Post by: <k> on March 20, 2019, 04:15:10 PM
(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=40804.0;attach=77800;image)

Indonesia, 100 rupiah, 1995.

The image above is of a proof version of the coin, courtesy of Heritage Auctions (https://www.ha.com).
Title: Re: Circular coins that have an inner polygonal rim
Post by: <k> on March 20, 2019, 04:16:01 PM
(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=40804.0;attach=77801;image)

Indonesia, 500 rupiah, 1992.

The image above is of a proof version of the coin, courtesy of Heritage Auctions (https://www.ha.com).
Title: Re: Circular coins that have an inner polygonal rim
Post by: <k> on March 20, 2019, 04:55:46 PM
(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=33693.0;attach=88765;image)

Jamaica switched from true polygonal to inner polygonal rim coins in the mid-1990s.
Title: Re: Circular coins that have an inner polygonal rim
Post by: <k> on March 20, 2019, 04:56:21 PM
(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=33693.0;attach=88766;image)

Jamaica, $10, 2008.
Title: Re: Circular coins that have an inner polygonal rim
Post by: <k> on July 04, 2020, 02:13:53 AM
(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=39617.0;attach=100616;image)



(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=39617.0;attach=100620;image)

Seychelles, 5 rupees, 2016.

See: Wildlife of the Seychelles (http://www.worldofcoins.eu/forum/index.php/topic,22875.0.html).