2. This is from China Empire, Ming Dynasty. According to my research, this coin is very rare. There are only 2 known mintage. Therefore most probably the coin you are holding is fake/reproduction.
3. definitely a fake - There is no existance of this coin
I bought this coins on Stephen album, so strange they sold me fakes
Stephen Album Rare Coins
Auction 20 18-20 September 2014
Lot 2974
WORLDWIDE:LOT of 27 cash coins of various countries, Bantam tin cash with Javanese script (1), Annam including some better types (6), Japan H-25.62 Yuan Feng type possible bosen or 'mother coin' plus two Kanei Tsuho types (3), Indonesia lead/tin cash with Chinese inscription (3), Korea early cash H-25.73 Choson tong bo type (1), Kelantan collection of four different type tin pitis (4), Hong Kong 1 mil coins of Victoria with one in AU condition (5), group of four misc. coins (4), average circulated quality, retail value $250, lot of 27 items, ex Nicholas Rhodes Collection.
Steve Album is one of the best coin dealers out there, especially for Asian coins. They are honest and work with you when you have problems. The Nicholas Rhodes Collection that they sold recently, unfortunately, was not amassed by Nicholas Rhodes. He bought the collection in whole during the 70s or 80s. The collection originated from China and came to the US during the 20s.
Joe Lang, one of the few experts in the US in Chinese Cash, went through the collection and removed close to 300 fake coins from the collection prior to auctioning the coins. Unfortunately, several coins still made it through the auction, including one of the coins I bought. I had a lovely chat with Joe and explained to him that other experts had labeled my coin a fake and hence he agreed with their assessment and canceled the bid.
So, I am not surprised that maybe one or two coins sneaked into the lot. Talk to them and see what they say. They are awesome and I maintain a great relationship with them. I bought tons of coins from them over the years...
They are all Vietnam 1 cash coin. The 2nd to the 6th are very common. So counterfeits make no sense.
The obverse legend of the first one is written in Seal script (Chinese: 篆書). It reads "佛法僧寶(Fo Fa Seng Bao)", means The Three Jewels of Buddhism. And it is also common.
They look all genuine. Just have fun with them.