Mike- that 1938 Winchester Sales Manual has lotsa fotos and other data on the M21-advise, if you want I can get foto-copies of those pages at the Library Zerox-and send them out to you. I would love to own a M21-a pal has a 1938 Trap Grade Skeet 20 gauge I would almost commit a class B felony to own- DT with Ejectors, straight hand stock, great pre-War wood and checkering-the older style receiver- no engraving, heavy for a 20 gauge with 28" barrels choked WS-1 and Ws-2 (is that Imp Cyl. and Mod. but with a different radius to the choke area-as shown in that 1938 book- Believe his Uncle bought it for around $115.00 back then-what a sweet handling well balanced 20-great dove gun--RWTF
