(Jan 14, 2019 edit - After more research... reading the freakin' manual. I discovered this is actually a 29K72 instead of a 29K73 as I originally posted).
Well... at least this time it's only been five months between posts. So that's a plus.
Quite a few updates coming now but I'll start with the one that I've been spending the most time on (other than getting the sewing room, insulated, framed and sheet rocked in the garage attic). The 29K72 from 1941. The model plate was ripped off so I needed to do a bit of research to figure out the exact sub-model of the 29 series. I found service manual/parts list that gave the nomenclature of each model. If you need to research 29K7Xs there is a badly scanned copy
here.