The artwork from the "York" sets of the era seems to have gotten around. Has anyone ever researched whether the artwork was developed by a printer then licensed [like the Mendelsohn cards M101-whatevers] or whether it was developed by a product maker then cross-licensed to other manufacturers [like Topps did with Burger King]? That would be very interesting to find out. I tend to think the former just because the York boxing issue [E211] found its way to Venezuela in the 1930s where it was used on ciggie cards:
