What types of coins are these? Are they all made of silver? I got a few as gift from someone, but all coins are magnetic (they still fast like glue to magnets) and have somewhat a rough look: The coins don't look like silver: they have an aluminium-like pail tone, but they stick to magnet (strongly!), but they don't feel, nor sound like silver. They look a bit like trinkets, could be replicas (plausible). They are lighter than nicket or steel. Probably some alloy. Some sources on the internet: https://www.ngccoin.com/price-guide...dollar-y-212-331907-cuid-1047511-duid-1309752 https://www.coinarchives.com/w/results.php?search=manchurian I can find photos of several similar coins, but I don't know whether these are genuine or not, because: - even if they're not silver, theoretically, they could be genuine and valuable - they could be a rare version of a genuine coin - I was unable to find clear description/presentation on the internet about: what they're supposed to look like/be made of/weigh etc. What do you think? Rare expensive coins or cheap fakes?