There are strong similarities in the 1938 Montague Catalog. Not with the model number but with the style of the rod. Montague offered single, double or triple built split bamboo big game rods in the late 1930's and they share traits of your rod, in my humble opinion. Here are some culls from the catalog.
This is the rod rendition in the 1938 catalog.
This is the description of the rod in the same catalog.
This is not an exact match but your rod may not be a 1938, it could be from a few years before or after. Thought it was worth a comparison anyways.