Hi there I'm still pretty new to coin roll hunting and could use some advice on what type of error this is. I can't tell if it's DD or MR. I've never seen tripling like shown in the "T". Thanks in advance.
It is MD ( machine doubled) quite common is the San Francisco mint during late 60's early 70s. Here are 2 of mine, a 68-S and a 70-S mintmark MD. Jim
first clue that its MD = the date and mint mark are doubled identically, this is impossible for a true doubled die as the mint marks were hand punched into the dies after they were created and therefore after any doubling on the die was created..
