Hmmm...I think perhaps the litho print is from one of his paintings. My husband has made a few lithos (we have one of the plates framed) and the litho might be a reproduction just for that postcard series.
Yeah, the 116 film was used in the old Brownie box cameras. (Awesome camera, btw.)
My question is if the camera that was used was an LF, how were the postcards so small? These are just slightly larger, makes me think 116 negative. Did anyone use glass plates that were that small?