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1948 Hungarian 20 Forint Silver, Were There Official Spoofed Specimens?

 
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Author Previous TopicReplies: 5 / Views: 274Next Topic  
Pillar of the Community
Hong Kong
1231 Posts
 Posted 06/14/2021  01:15 am Show Profile   Bookmark this topic Add wonghinghi to your friends list Get a Link to this Message
Hi everyone, do you have this coin?

The one I have is shown here. The coin is 27.90 grams and 40.0mm in diameter.

The coin is attracted by the strong magnet, Neodymium.

This coin is real but not likely to be a silver coin.

Any person possess this coin can test it with a strong magnet and tells your observation.

Thank you





Edited by wonghinghi
06/14/2021 02:07 am
Bedrock of the Community
Australia
18720 Posts
 Posted 06/14/2021  01:52 am  Show Profile   Bookmark this reply Add sel_69l to your friends list Get a Link to this Reply
This coin 50% silver alloy.
By the looks of it, this coin is genuine.
If this coin is attracted to a neodymium magnet,
my guess is that some of the remainder 50% alloy has some nickel in it.

Is is it attracted to a normal iron magnet? (I suspect that it isn't)
Pillar of the Community
Hong Kong
1231 Posts
 Posted 06/14/2021  02:02 am  Show Profile   Bookmark this reply Add wonghinghi to your friends list Get a Link to this Reply
@sel, it doesn't attract to a normal magnet.

Sound test of it also contains no silver to me. I would guess this is purely a Cu-Ni specimen.
Bedrock of the Community
Australia
18720 Posts
 Posted 06/14/2021  03:42 am  Show Profile   Bookmark this reply Add sel_69l to your friends list Get a Link to this Reply
Krause World Coin Catalog shows the 1948 Hungarian 20 Forint (KM# 539) as being composed of .500 silver.

In relation to this coin, I don't have a problem with your findings with the ferro magnet and the neodymium magnet.
The presence of 50% silver in the alloy will not affect the behaviour that you have observed.

So long as there some other magnetic metal in the .500 fine silver alloy. The strength of the magnetic attractive force will depend on the type and concentration whatever magnetic metal is in the alloy.

Coin pictured normal and genuine.
Pillar of the Community
Hong Kong
1231 Posts
 Posted 06/14/2021  04:20 am  Show Profile   Bookmark this reply Add wonghinghi to your friends list Get a Link to this Reply
I strongly suspected this coin contains no silver but a high percentage of iron.

50% silver should have no reaction to neodymium.

I need more observations by different coin collectors.

Pillar of the Community
Learn More...
United States
4887 Posts
 Posted 06/14/2021  09:35 am  Show Profile   Bookmark this reply Add tdziemia to your friends list Get a Link to this Reply
From your photo, the coin looks like other low silver content coins I have encountered from this era (for example, the Swedish 40% silver types).
But photos sometimes don't look like the coin does in hand.

I tend to agree with @sel, but I hope you get an answer from another collector who has this coin. If you have a relationship with a jeweller or local coin store, they can also give you the answer.



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