Of course you guys were correct that this wasn't a Holley 2300 after all. If I had looked at the back of the carb more closely, I would have realized that too. My only defense was that I had a receipt amongst the late owners papers that indicated that he purchased a Holley 2300, where its located is unknown.
With you help and these photos, I've learned that the carb is a Stromberg WW model 6-123A, which research indicates having come off of a Studabaker. A quick stop at Mike's Carburetor store (online) and I have the rebuilt parts on the way.
