I was wondering about some uncompleted railroad cards that I have, these are cards that would have been carried in your wallet.

One is titled Standard Loaner Card & is from the Missouri Kanas Texas Railroad.

Another is titled Standard Loaner Card but I don't see any certain railroad mentioned.

The 3rd is titled St. Louis San Francisco Railray Co. Employe's Quarterly Card Certificate, this card is issued by Kansas City Jewelers, Inc.

Anyway my question is are these cards common or have I stumbled onto something.

Thanks
Tom