Dr John, thanks. When I said 'unissued', I meant unissued at the time according to G&D. G&D usually indicate subsequent issues of unissued sides, but in this case made no mention of the RCA issue you mention. They do refer to an RCA (England) issue of an unissued recording of 'Take This Hammer' from the same 1940 session with the GGQ. Johnny Parth, of course, later issued on Document every pre-war 'race' record he could access.

--Stewie.