Third Party Grader. As in NGC ANACS, PCGS, ICG. And slab refers to the holder they place the coin in when they grade it.
It's best to use English Pandapaule - Yes, it's mine. Why do you ask? Thanks to all for the good advice. I will listen to them and look for better preserved coins and not send them in.
Thanks for info, C-B-D. At least, now I know it isn't that yellow contraption you're driving around in !
Well.... just because TPG means one thing in one context, doesn't mean it can't mean something else in another. I believe that MIGHT BE a 1956 vintage TPG that C-B-D's avatar creature is driving. Naturally aspirated Offenhauser, if I'm not mistaken.