Aluminum Planchet France 1977 20 Centimes

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Author	Replies: 3 / Views: 1,120
deisenb75 New Member United States 29 Posts	Posted 05/25/2020 1:35 pm 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! Report this Post to the Staff

NumisRob Bedrock of the Community United Kingdom 17905 Posts	Posted 05/25/2020 2:55 pm 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. My Trade List: https://goccf.com/t/194596 My Wants List: https://goccf.com/t/191710 Report this Post to the Staff
deisenb75 New Member United States 29 Posts	Posted 05/25/2020 3:18 pm 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? Report this Post to the Staff
Wade Pillar of the Community Canada 2781 Posts	Posted 05/25/2020 4:49 pm 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) Report this Post to the Staff
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