Not 'cards', but a great pick-up anyway. These caps are currently not listed in the big, annual Beckett. That's because they are very rare and hard to find. They do not follow the standard numbering system of the team caps for '65 & '66 (C1-C36). They are numbered by jersey # like the All-Star caps from '64.
Needless to say, I was very happy to find these!