I assume that means 22K or 24K but I tested it with 18K acid solution and it slowly fades away but the 14 solution it stays longer. I don’t have any 22K solution..... I will take a picture of the back....
any comments?? isn’t it possible to mark it 9999 then cheat and make it less K gold. I do admit it looks like higher than 14K but I don’t have as much experience with the acid tests.... any feedback