It is a pieces of eight. If it is real, then it is worth a decent amount. However, this specific date and location has the worst reputation for not being legit. In the 70's a LOT of fakes of this coin were produced. So could be a bad deal or a really good deal.
just saying a lot of fakes on the market and the picture is not close enough to accurately compare to known authentic coins. the rimming of the coin is extremely hard to fake as they used a specific pattern often missed.
not paying over 750 for a coin i don't know is real even if it is it had damage to the coin. But most likely fake from what i read. if i can see the rim of the coin i can say more
well their is no way of telling it is fake if it is zinc. Zine has a fair same feel as silver and the only way would be a sample or luster test both are impossible in this case. Iron is easy if it sticks to a magnet.
i'd bid if i could get a more detailed pic because i could look for the build up of zinc oxide on the surface. try using macro focus on a camera. (the flower looking thing) should help
I had a verrrrrrry similar coin... early 1800's i think it was from sweeden...cant realy tell by the pics but it looks like the same type of coin I had. I recently sold on ebay (3-4 months ago) and was verry please with what I got for it!
this coin is from mexico city i found it on a website heres some of the stuff i found Obverse: CAROLVS · III · D · G · HISPAN · ET IND · REX [four petal rosette] Reverse: VTRAQUE VNUM / [four petal rosette] Mo [rosette] 1760 [rosette] Mo [rosette]
More possible info: "They were struck during the era of the American Revolution, this one having the Mexico City mintmark (the M with the little circle above it, or so I undertand that to be the case). These Spanish dollars were the first silver dollars used and accepted as payment in the American colonies. They were the preferred coins in the young American nation even after the first U.S. dollar was struck in 1794." Cited from that other site. Metal composition looks silver, but is more than likely iron, zinc, and other minerals.
Based on some research I just did, this coin could possibly be a fake. Without going into an essay here like I did with the Germany comment (heh), someone minted a lot of fakes circa 1950 for whatever reason (pirate movie was mentioned as a motive). I'm not saying this one is...just that there is the possibility. BUT, for the purpose of IDing it, it's either a real or fake 1760 Mexico City Carlos III coin, according to another well known cite.