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I am familiar with the date codes page, however had not seen the production info. Thanks for educating me with that link. I had relied on inaccurate info obtained elsewhere (indicating production ending before sernr 821000) in dating the receiver which I now know was not “very late,” but likely produced ca. mid-1936.
My original question still stands: Is it likely/possible a Model 12 left the factory with a 1932 dated bbl. on a 1936 serialized rcvr?