Indonesia, very special trial 5 sen coin

[Berani]

I like to show you a very special trial 5 sen coin from Indonesia.
Normaly the 5 sen coin of this type is made from aluminuim and holed.
Last year I did find this special 5 sen coin that is made of zinc and is unholed.
Together with a numismatic friend I found out this this s sen coin seems to be a kind of trial strike on a former 10 pfennig 1940 coin from Germany. You can find some remaining signs of the german coin on the zinc 5 sen coin and the zinc 5 sen coin has the same weight as this type German coin.
So it seems the Dutch Mint used the 10 pfennig coins to make a trial strike for the Indonesian 5 sen that are struck as you might know in The Netherlands.

I placed an artikel in a Dutch numismatic magazine about it but I didn't got any reaction. As far as I know this is the only zinc 5 sen 'trial'-coin that exist. 
Who know more about this coin? And I also like to know: is there anybody else with this kind of coin in the collection?

greetings Berani

[gxseries]

Wow bizarre overstrike. Not too sure what is going on but this is crazy.

Maybe they were out of planchets and it was randomly struck on coins that fitted the same size. But what are the odds of an Indonesian coin on a nazi coin?

[Berani]

Wow bizarre overstrike. Not too sure what is going on but this is crazy.

Maybe they were out of planchets and it was randomly struck on coins that fitted the same size. But what are the odds of an Indonesian coin on a nazi coin?

Yes it is realy strange. On the picture of the backside of the zinc 5 sen coin you still can see parts of the nazi eagle en also the date 1940. But the story is funny... using former war coins to make trial strike for an ex-kolony

[Figleaf]

Never seen this before.

The use of the German coin is not difficult to explain. After the second world war, the Dutch government made a big effort to bring the monetary mass back to normal (more detail here). In the course of that exercise, the government confiscated enormous amounts of money, mainly from war profiteers, black market traders and convicted war criminals. In time, most of the loot was destroyed (much of it had become worthless anyway), but two cases of banknotes are kept by the Geldmuseum, the Dutch national collection. It is clear from those two cases that much of the confiscated money was German.

There must have been quite a few confiscated coins as well. At the time, the Utrecht mint probably had pretty vast quantities of zinc German coins, while it wasn't using zinc any more. In such circumstances, it makes sense to use a worthless coins for die tests.

By contrast, it is completely unclear to me how this piece ever got out of the Mint complex. Security precautions are severe and such tests pieces are not sent to the usual suspects, politicians, civil servants and makers of coin-operated machines.

Peter

[Berani]

Never seen this before.

By contrast, it is completely unclear to me how this piece ever got out of the Mint complex. Security precautions are severe and such tests pieces are not sent to the usual suspects, politicians, civil servants and makers of coin-operated machines.

Peter

This is one of the question. How did it come out of the Dutch mint. And how many of these trial strikes are made.
And are there any others coins like this one known somewhere?

[andyg]

It's not unknown for mint workers to deliberately create something like this, there is an example of a UK 5p (1992 I think) overstruck on a UK sixpence from the 60's, something which it is impossible to have occurred officially.  Nice coin though and thoroughly worth researching....

[Figleaf]

Indeed, but that doesn't answer the question of how it escaped the Mint complex. The coin seems too big to swallow to me and I can't think of another way to get it out. Security is tight and corruption very low. Theoretically, it could have gotten mixed up in a batch of normal coins and escaped quality control, but then you'd expect it to surface in Indonesia, not the Netherlands. A very special piece indeed.

Peter

[Prosit]

Zinc would be a dangerous coin to swallow much more so that Silver, Nickle or Copper.

Dale

Indeed, but that doesn't answer the question of how it escaped the Mint complex. The coin seems too big to swallow to me and I can't think of another way to get it out. Security is tight and corruption very low. Theoretically, it could have gotten mixed up in a batch of normal coins and escaped quality control, but then you'd expect it to surface in Indonesia, not the Netherlands. A very special piece indeed.

Peter

[RVCOINS]

I can may have it wrong but when I compare these two coins, on the zinc 5 sen we are missing 3 dots in the arabic text on the left side of the coin.

Roland   

[translateltd]

I can may have it wrong but when I compare these two coins, on the zinc 5 sen we are missing 3 dots in the arabic text on the left side of the coin.

Roland   

I think the dots are there, just quite faint - there appear to be dot-shaped marks at the right places.

[Figleaf]

While I can indeed see the lower dot (it may be faint due to the light angle) I haven't found the two dots at 3 o'clock - though it is possible that one shows. Berani, what does it look like coin in hand?

Spurred by RV's observation, I can now think of a way the coin left the mint. Suppose it was sent for approval to a party in the Netherlands, e.g. working from the embassy of Indonesia? In 1951, relations between the Netherlands and Indonesia were still relatively good, but there was a good amount of turmoil in later years, that may have caused this coin to escape from official archives as they were being moved. In other words, the coin was not struck to test the die, but to have it approved ...

Peter

[Afrasi]

These three missing dots are very weak on the late strikes of this coin. The weak dies together with the harder metal composition may cause their missing.
Figleaf told us the Dutch mint having very high security standards. I believe that, too. So I don't believe in a pattern, but tend to AndyG's opinion of a kind of "mint sport".