Well, all I can tell you is it's a Japanese Dollar. Value I'm not sure of, but I'm sure someone else will be along shortly to chime in.
I know it's not a French coin because French coins don't have Chinese writing on them. Here we go. I think it's in here, someplace... http://worldcoingallery.com/countries/ChinaE0o.php
The coin is a Chinese 3 Mace and 6 Candareens (50 cents) Y-202 undated and struck from 1890-1905. It is most likely not a fake as it is illegal in China to make counterfeits of their own coinage even for export. The dollar Y-203 is 7 Mace and 2 Candareens
The coin appears quite genuine and a very nice example. Value in this condition is $300 to $400 and possibly more if slabbed.
Your first photo needs to be rotated 90-degrees counter-clockwise. The second photo needs to be rotated 90-degrees clockwise. You have a 50-cent (3 Mace and 6 Candareens) coin from the Kwangtung Province. According to the 2009 Krause catalog, here is the data for a genuine coin. It would be interesting to learn precisely how you have determined the coin to be real. Y#202 50 cents 13.5000 grams 0.8600 silver (.3733 oz of silver in it) Vg $6.50 F $20 VF $40 XF $75 Unc $250
w well I've done my tests for silver, weighted it, and had numerous foreign experts say it's genuine. Plus it's been sitting in a drawer for 40+ years. I plan too take it too my dealer and see of they can authenticate it
