I bought this for $10 on ebay recently and discovered it contained a fragile watch inspection card. I think I now understand how these were used. The card is signed by Ammerman and at the bottom of the card is printed that this card is not to be defaced or allowed to be soiled. It is a UP card from 1929. I now think that these wallets were sold to railroaders to keep their cards clean. Others probably already knew this. Used leather preservative to restore the wallet. I have to laminate the card to save it. As a side note, it is for an 18s Elgin that was grandfathered in.