I was given this coin in China where I was working in 1992. After some research, I identified the year 18 (+1911) which dates it to 1929. The size is approximately 39mm, non-magnetic but I haven’t weighed it yet, seems around 25g. Is this coin a genuine 1929 Sun Yat Sen silver Dollar or a fake? Here are my doubts: Sun Yat Sen bust seems larger, the first character on the left starts at around 9 o’clock (shouldn't it be 10-11?) The ‘junk’ with 3 sails doesn’t match the other 1929 coins,the sea horizon is too low, more like other coins with have the 2 sail junk + rising sun + birds? Thanks for any feedback