World of Coins

Design and designing => Coin characteristics => Topic started by: <k> on May 24, 2011, 02:49:58 AM

Title: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on May 24, 2011, 02:49:58 AM
By heptagons, I mean seven-sided coins. OK, it won't be a full alphabet - it will have a few gaps, and I may have to cheat in some cases. When I've finished the alphabet, I'll open up the topic to comments.

The first heptagonal coin was created by the Royal Mint (UK). It was a British 50 pence coin, first issued in 1969.

In this topic, I will give priority to circulation coins, because some countries (Gibraltar, the Isle of Man) have produced dozens of different heptagonal issues. However, if the only heptagonal coins a country has issued are commemoratives, then I will include them.



To post comments on this topic, please click on the link below:

Comments on "An Alphabet of Heptagons" (http://www.worldofcoins.eu/forum/index.php/topic,18730.0.html)
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on May 24, 2011, 02:51:38 AM
Because I can't find an "A", I will cheat and start with two trial 50 cents coins from Australia that were never issued.

(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=39012.0;attach=72549;image)

(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=9084.0;attach=74908;image)

 
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 06:58:01 PM
Barbados, 1 dollar.

(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=4024.0;attach=60214;image)

 
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 06:58:40 PM
Botswana.

(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=10885.0;attach=66880;image)(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=10885.0;attach=66881;image)



(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=23641.0;attach=66875;image)



(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=10347.0;attach=66876;image)(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=10347.0;attach=66877;image)



(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=10884.0;attach=66873;image)(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=10884.0;attach=66874;image)

 
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 06:59:51 PM
Cape Verde.
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:00:22 PM
Cyprus, 50 cents.
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:00:51 PM
Falkland Islands, 20 pence.
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:01:18 PM
Falkland Islands, 50 pence.

(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=21492.0;attach=72243;image)

 
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:01:53 PM
(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=20288.0;attach=76634;image)

Gambia, 1 dalasi.
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:05:23 PM
Ghana, 200 cedis.
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:06:33 PM
(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=9238.0;attach=62161;image)

Gibraltar, 50 pence.
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:06:53 PM
Gibraltar, 50 pence.

(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=13166.0;attach=62149;image)

 
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:07:24 PM
Gibraltar, 20 pence.

(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=20641.0;attach=62219;image)

 
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:08:29 PM
Gibraltar, 20 pence.

(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=12038.0;attach=72321;image)

 
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:09:04 PM
Gibraltar, 20 pence.

(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=15035.0;attach=72325;image)

 
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:09:54 PM
Gibraltar, 50 pence.

(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=27107.0;attach=62204;image)

 
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:11:27 PM
Guernsey, 50 pence.

(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=20766.0;attach=62522;image)

 
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:12:09 PM
Guernsey, 20 pence.

(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=15003.0;attach=62342;image)

 
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:12:38 PM
(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=13166.0;attach=62554;image)

Guernsey, 50 pence.

 
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:13:29 PM
Guyana, 10 dollars.
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:14:19 PM
Haiti, 1 gourde.
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:14:37 PM
Haiti, 5 gourdes, 1995.
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:15:03 PM
Ireland, 50 pence.

(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=23679.0;attach=80862;image)

 
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:15:49 PM
Isle Of Man, 50 pence.

(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=26996.0;attach=62251;image)

(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=26996.0;attach=62265;image)

(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=26996.0;attach=72343;image)

(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=26996.0;attach=72377;image)

 
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:16:14 PM
Isle of Man, 20 pence.

(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=19251.0;attach=72352;image)

 
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:16:42 PM
Jamaica, 1 dollar.
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:17:33 PM
Jersey, 50 new pence.

(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=18887.0;attach=72219;image)

 
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:18:07 PM
Jersey, 50 pence.
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:19:08 PM
Jersey, 20 pence.

(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=9128.0;attach=85747;image)



(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=9128.0;attach=62489;image)

 
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:20:28 PM
Jersey, 50 pence.
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:21:26 PM
Jordan, ½ dinar, bimetallic.
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:21:51 PM
Kenya, 5 shillings.
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:22:16 PM
Liberia, 5 dollars.
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:22:45 PM
Madagascar, 10 ariary.
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:23:13 PM
Malawi, 5 kwacha.
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:23:38 PM
Malawi, 50 tambala.
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:24:40 PM
Malawi, 50 tambala.
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:26:23 PM
Mauritius, 10 rupees.

(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=37395.0;attach=66834;image)

 
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:27:10 PM
Mexico, 10 pesos.

(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=33599.0;attach=58235;image)

 
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:29:07 PM
Mozambique, 2.5 meticas.

(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=10935.0;attach=71691;image)

 
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:29:23 PM
Mozambique, 1 metical.

(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=20641.0;attach=71709;image)

 
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:30:05 PM
Nicaragua, 5 cordobas.
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:30:34 PM
Oman, ½ rial.
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:31:18 PM
Papua New Guinea, 50 toea.
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:31:44 PM
Papua New Guinea, 50 toea.
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:32:07 PM
Papua New Guinea, 50 toea.
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:32:40 PM
Poland, 300,000 zloty, 1994
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:33:17 PM
Saint Helena-Ascension, 20 pence.

(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=13166.0;attach=62134;image)

(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=13166.0;attach=62135;image)

 
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:33:38 PM
Saint Helena-Ascension, 50 pence.

(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=2194.0;attach=62167;image)

(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=2194.0;attach=62168;image)

 
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:34:13 PM
Sri Lanka, 2 rupees.
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:34:58 PM
São Tomé and Príncipe / St Thomas and Prince.



(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=44468.0;attach=87228;image)



(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=44468.0;attach=87229;image)



(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=44468.0;attach=87230;image)



(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=44468.0;attach=87231;image)

 
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:35:30 PM
Samoa, 1 tala.

(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=44050.0;attach=86205;image)

 
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:35:51 PM
Samoa, 1 tala.
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:36:24 PM
Seychelles, 5 rupees.

(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=8770.0;attach=72111;image)

 
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:37:03 PM
Seychelles, 5 rupees.

(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=8770.0;attach=72110;image)

 
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:37:25 PM
Seychelles, 5 rupees.

(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=22875.0;attach=69690;image)

(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=22875.0;attach=69691;image)

 
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:37:49 PM
Sierra Leone, 2 leones, 1976.
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:38:12 PM
Solomon Islands, 1 dollar.

(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=41754.0;attach=80322;image)

 
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:38:44 PM
Tanzania, 20 shillings.
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:39:04 PM
Tanzania, 50 shillings.
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:39:34 PM
Tonga, 1 pa'anga.
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:40:12 PM
Uganda, 10 shillings.

(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=39368.0;attach=71751;image)

(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=39368.0;attach=71752;image)

 
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:40:27 PM
(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=23752.0;attach=97276;image)



(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=23752.0;attach=97277;image)



(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=39368.0;attach=71744;image)

Uganda, 5 shillings.


 
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:41:06 PM
United Arab Emirates, 50 fils.
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:41:35 PM
United Kingdom, 50 pence.
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:42:01 PM
The other heptagon in circulation in the UK is the 20 pence coin. Its surface is countersunk. Although other British-linked territories use heptagonal 20 pence coins, only the Isle of Man, Gibraltar, and St Helena and Ascension use countersunk planchets. Jersey, Guernsey, and the Falkland Islands use 20p coins without the countersunk feature. In the case of the Isle of Man, the issues prior to the year 1993 are NOT countersunk.
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:43:44 PM
UK, 50 pence.
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:44:36 PM
(http://www.worldofcoins.eu/forum/index.php?action=dlattach;topic=44050.0;attach=86205;image)

In 1997, Western Samoa changed its name to Samoa. It did this with the agreement of the Americans, who administer American Samoa. This is reflected on their coinage. On the later coins, the legend says simply "SAMOA"; on the first coins, it reads "SAMOA I SISIFO", meaning Western Samoa.
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:44:47 PM
No X or Y as yet, but here, at the end of the alphabet, is a novelty collector coin from Zambia.
Title: Re: An Alphabet of Heptagons: Seven-sided Coins
Post by: <k> on November 21, 2012, 07:46:48 PM
Click on the link below to read more about polygonal coins in general:

Polygonal coins have many sides and many facets (http://www.worldofcoins.eu/forum/index.php/topic,9889.0.html)



To post comments on this topic, please click on the link below:

Comments on "An Alphabet of Heptagons" (http://www.worldofcoins.eu/forum/index.php/topic,18730.0.html)