stew cameron-cartoonist-let the chaps fall where they may

I have 10 prints or lithographs by stew cameron .they are in the original shipping envelope from 1950-envelope is in good shape-the 10 prints or lithographs are in great shape.it say on envelope let the chaps fall where they may.each print or lithograph is named.they are of a rodeo-look like cartoons in pencil. Looking for a value an more about this. Now on back of envelope are pencil sketches of ladies faces I say this cause of who it was shipped to . A ray Miller of marionette,Wi. On top of the envelope is the name Dick Schulze -Broadus,Mont. I was told Ray was a world war ll hero. An I heard stew was in world war ll.really looking for a value on the prints or lithographs. How would I know if they are a lithograph or a print . Thank you !  [email protected] don't have a way to take pics at this time .but hope by my description you know what I'm talking about.