Studebaker castings?

I picked up a nice collection of early car parts that were stored for many years. They are mostly NOS items from the mid 1930's to the early 1960's. Old American cars and trucks are not common here in Kenya and so there are few experts to consult. I've identified several Studebaker parts and hope to find out about others that I think are also for Studebakers. Many of the castings that I think are for Studebakers have a common trademark logo that I hope someone recognizes.

The trademark on the underside of these two Studebaker radiator cap castings (visible in the one photo) looks like a circle with a large "C" just inside of it and then the letters SM inside of the C. I don't know if this indicates a Studebaker part or just a trademark for a casting supplier. Just wondering if this a clue as I continue to try and identify old parts.

By the way, does anyone know the different applications for the chrome and black painted caps? I understand from my posting in the Studebaker forum that these are for 1935 trucks, but not sure which used the painted cap and which used the chrome cap.

Appreciate any help. Tom

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Tom,

You might also try the Antique Studebaker Club (they cover prewar cars and trucks) or try contacting Richard Quinn (the former editor of their magazine). It is possible the painted and chrome versions were due to a different trim level.

Gary