Posted 1 year ago
China: 1 Dollar 1907 K-212 weight 19.72g should weigh 26.9g. Specific gravity 9.717 which means it could be .500 silver, should be .900 silver.
“Gan-su” (Kansu) Province 1 Dollar no date (1875-1908) fantasy type, weighs 20.19g. Specific gravity of 9.675 so it could be .500 silver.
Ecuador: 5 Sucres 1944 KM-79, weight 18.26g. Should be 25g. Specific gravity 7.78 which means this piece is probably silver gilt aluminum-bronze. Interestingly this coin shows a die clash and die cracks!
French Indo China: 20 Centimes 1930 KM-17.1, holed, weighs 5.83g, should be 5.4g without a hole. Specific gravity 10.00 which is correct for .720 silver which is higher than the .680 silver that the genuine coins of this type are!
Mexico: 8 Reales 1885 Go-RR KM-377.8 weighs 24.51g, should weigh 27g. Specific gravity 8.716 indicating a copper-tin-zinc alloy instead of the proper .900 silver of a genuine coin.
All are good cast copies that look like they might have been struck with rusty dies. The Ecuadorian and Mexican pieces were made to fool people buying coins for silver content. The Chinese were made for sale to tourists based on the low sales price in a gift shop in a Wisconsin resort town that had boxes full of these on display. The French Indo China coin was cast by local Hmong craftsmen for use in jewelry and looks like it was struck with a very rusty die. The relief is so high that the coin rocks when on a flat surface. The reeded edges on all these coins is not as good as the genuine mint products.
Caution is advised when buying even common coins like these now that the price of silver is so high.