As far as the stems go, only one of these 7 even has any light tooth chatter, and that will polish right out. (In fact, it might not even be anything more than oxidation where the owner put his mouth.) However, “Monday’s” pipe stem does not have the metal 3B logo. All the rims are without wear, but a little carbon residue, naturally, will attach to a rough surface, like the rims here. I think they’ve all been smoked just a little and they are all Grp. 4 or 5.