Santa Fe railroad bag

I hope someone can tell me something about this leather bag. I think it might be a mail or bank bag. It was made by the Max W.Behnke company of Chicago. Across the front is the name L.R. Thomas in yellow letters with black in back. Above the name is a yellow and black Santa Fe railroad symbol that has faded. It can be seen in the light. I hope someone can tell me something about the bag, or L.R. Thomas.