This radiator shell is for the smaller radiator, it came off a 1923 aluminum body Fordor. I saw a picture on the Forum a few months ago showing a speedster with a radiator shell like this one. It is not marked Ford.
New accessory to me, but I'm not going out the garage in a hurry to braze vertical bars on my 26 and 27 radiator shells!
Scott - are you planning on using that shell?