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Different Metals/Colors On A Trio Of French Coins 1780-1790?

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paralyse's Avatar
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 Posted 07/28/2024  01:16 am Show Profile   Bookmark this topic Add paralyse to your friends list Get a Link to this Message Number of Subscribers
Good evening CCF

Won this small trio of inexpensive low-grade French coins recently and was curious as to why the colors are quite different.

Was there a change in metal composition between these years as the transition was done into Revolutionary coinage, or is there some other explanation for why these coins struck relatively closely together are so noticeably different in their appearance?

1786 T Sol (Nantes) - a dark, coppery color like you would see on early US Large Cents




1791 R Sol (Orleans) Dot - a brassy lighter color with a bit of coppery red in places




1792 B 2 Sols (Rouen) Francois - looks like a brassy bronze color that reminds me of the old Irish gun money or Roman orichalcum.




Thoughts welcomed, thanks!
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Edited by paralyse
07/28/2024 01:19 am
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Hondo Boguss's Avatar
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 Posted 07/28/2024  01:52 am  Show Profile   Bookmark this reply Add Hondo Boguss to your friends list Get a Link to this Reply
My thoughts:
a) 1786 T Sol - environmental issues
b) 1791 R Sol - harsh chemical cleaning
c) 1792 B 2 Sols - although these are supposed to be copper, I've seen much variability in the color of these. I believe that there was a great deal of latitude in the alloys used to mint these coins.
Inordinately fascinated by bits of metal with strange markings and figures
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paralyse's Avatar
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 Posted 07/28/2024  02:13 am  Show Profile   Bookmark this reply Add paralyse to your friends list Get a Link to this Reply
The 2 sols is the one that stands out a bit more to me, as it's very much un-copper-like in its appearance. I have a few other 2 Sols with similar color.

The 1st coin definitely has env. damage - that's a given - the second coin does not appear to have been cleaned harshly, though, although the photos may not really reflect that (hasty cell-phone snap.)

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 Posted 07/28/2024  02:41 am  Show Profile   Check NumisRob's eBay Listings Bookmark this reply Add NumisRob to your friends list Get a Link to this Reply
Bells from churches were torn down during the French Revolution and some of the metal went to the French Mint. The yellowish-colored coins are called 'sous de clochers' (belfry halfpennies) in France as they are supposedly made from bell metal.
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paralyse's Avatar
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 Posted 07/28/2024  1:08 pm  Show Profile   Bookmark this reply Add paralyse to your friends list Get a Link to this Reply
That would probably be a good explanation, NumisRob, thanks!

I'll look up to see when the dates were of the bell metal coins

I have a 1793-BB 2 Sols (L'an 5) and the metal is almost identical in color.
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