I have two coins, a 1988 dime and a 1967 dime. The 1988 dime appears to be crushed and possibly even offcenter. I also have a 1967 dime that has a scratched surface that doesn't look man made, and it's kind of grooved. For the 1967 coin I tried to replicate the scratchings and it doesn't seem to be right. Any ideas and info will be greatly appreciated!