EDIT: Ah yes, supposed to brag, sorry.
A couple of days ago I asked to see that nondescript little box in the display case marked $6. I thought there was a chance of finding a fountain pen. Inside were three writing instruments: Sheaffer's pencil from perhaps the late 20s, Moore FP from probably the 40s, and a basic cartridge Sheaffer from I don't know when. Sometimes I'm glad they just leave the boxes closed so that you have to ask in order to find out what's in there!