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Aluminum Planchet France 1977 20 Centimes

 
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Author Previous TopicReplies: 3 / Views: 197Next Topic  
New Member

United States
22 Posts
 Posted 05/25/2020  1:35 pm Show Profile   Bookmark this topic Add deisenb75 to your friends list Get a Link to this Message
Hi all,

I found this France 1977 20 centimes coin, which seems to be minted on an aluminum planchet, rather than the standard aluminum-bronze for that series. I haven't found mention of others like it on the internet. Have any of you seen something similar? I don't have a good enough scale to weigh it, but it definitely feels lighter than the aluminum-bronze coin, has a different ring to it, and looks like straight aluminum. The lettering and detailing look a bit smeared, maybe from the softer metal? Am I looking at a fake? Insights would be welcome!





Pillar of the Community
United Kingdom
7069 Posts
 Posted 05/25/2020  2:55 pm  Show Profile   Check NumisRob's eBay Listings Bookmark this reply Add NumisRob to your friends list Get a Link to this Reply
I haven't heard of any off-metal strikes for this coin, but the Monnaie de Paris was producing aluminium 1-franc coins for French Polynesia at the time which would have been about the right size. So there's a possibility that an aluminium blank could have got into the wrong hopper. An accurate weight would be required.

20 centimes in 1977 was only worth about 3 or 4 US cents - I can't imagine anyone wanting to counterfeit this coin.
New Member
United States
22 Posts
 Posted 05/25/2020  3:18 pm  Show Profile   Bookmark this reply Add deisenb75 to your friends list Get a Link to this Reply
I just used a not-very-exact scale to weigh it, and I'm getting 4g for the usual aluminum-bronze coin, and only 3g for the seemingly aluminum. The scale estimates to the nearest gram so it's not at all exact, but it leads me to think it's not a blank from a French Polynesian franc, which Krause says should be only 1.3g. Any other ideas?
Pillar of the Community
Canada
2395 Posts
 Posted 05/25/2020  4:49 pm  Show Profile   Check Wade's eBay Listings Bookmark this reply Add Wade to your friends list Get a Link to this Reply
take it to the post office, or a jeweler, or buy an accurate digital scale of Amazon.

if it's an off metal strike it could be worth a good bit of money (Canadian off metal strikes are usually in the hundreds of dollars)
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