Vince and Betty Mowry. They are both gone now, but they specialized in slot machine tokens (mostly Nevada) and published (zeroxed) a sales catalogued that contained a goodly amount of information that it could almost double as a Guide. Since it included prices that they would sell at, some people just used it as a Price Guide!

While Vince and Betty (which may be spelled wrong, and I apologize if so) are no longer with us, their daughter (if I'm not mistaken) took on their inventory and have been to several Conventions since their passing. I am not certain of her status at thios point, but surely someone here must have additional information.

However, the catalogue probably no longer exists as it was years ago (i.e., being kept up to date) but there might be old copies out there somwewhere.

Jim