Love the baby one (of course!), and I think I have one tucked away somewhere. I don't think I have any overstrikes, but I suppose this counts as a counter stamp. The 'gin' mark was applied by the Japan Mint for yen that were being exported. IIRC Due to some quirk of the silver and gold exchange rates it might have been lucrative to export, purchase, then reimport the coins, so they were stamped for export as a trade coinage. The mark could be either to the left or the right of the field depending on which mint branch applied it (left for Osaka, and right for Tokyo). Vs chopmarks applied privately to assure coinage. This one got a few: I'm sure I have more floating around but I'm not doing a lot of coin/medal stuff currently.
I've been on a bit of a roll with the Western Reserve Numismatic Club counter stamped pieces. The dies for the counter stamp and the striking were done by Ron Landis / GMM. These pieces tend to be scarce. Here is a population report from an archived copy of Vern Walfren's GMMNut site. It's about halfway down the page. http://web.archive.org/web/20160413045548/http://gmmnut.com/gmm/gmm29.html Anyway, this first piece, the Standing Liberty Quarter, has a population count of seven (7) coins in total. Examples with their original case appear to be very rare indeed . . . . Z
Some how I can't find the reverse of this one. View attachment 1404109 Had to take a few quick glamour shots.
French 2 Francs, 1866, defaced with "SEDAN" to protest Napoleon III's defeat and capture at Sedan during the Franco-Prussian War. City of Wiedenbrück 1692 3 Pfennig wheel countermark. I'm not sure what the stamped wheel indicates. UK Trade Dollar 1911 B Colombia 1821 8 reales "MDQ" (Moneda de Quito) countermark for use in Ecuador
Austria 7 Kreutzer 1802 (jewelry mounted) These were overstruck on 1795 12 Kreutzer coins. Only 0.250 fine silver. Austria ran into monetary problems during the Napoleonic Wars (they kept losing to France), and debased some of the currency. I assume the restrike was a remonitization to bring the value closer in line to the metal content.
I have a few examples from the Western Reserve N C too. I bought them from a retired member quite a few years ago. Well executed and either scarce or rare. Do you know how many nickels were struck?
Here you go, about halfway down the page. Looks like only 27. Z http://web.archive.org/web/20160413045548/http://gmmnut.com/gmm/gmm29.html
Here's one that I don't see listed among the others. Apparently, it's the Western Reserve moto and struck on a British coin. Bruce