Picture from a book titled History and Pictures of Conway, Missouri and Surrounding Area compiled by Bill Luallin. No year indicated on photograph.
I also like your picture and the D7 Caterpillar. The person that purchased some of the different model Frisco Cats said they had been well maintained. He also has a couple of Fairmont track motor cars he intended to restore and donate to the Railroad Historical Museum, Inc. But he is now in failing health and unable to finish the restorations.