Many years ago I used to deal with some BPOE collectors; asking them for chips.

Then, during one phone conversation one collector mentioned that he had a chip, but didn't know where it was from... at which time I mentioned I had a list of every known location; number and city (TAMS).

Needless to say, he and the rest of the group were totally shocked... and that's when the good times rolled in.

Funny, a group as large as they were back then had very little idea of locations.

Which, should sound off a bell as to how important some collector groups can be to one another... 😁