Supica's book lists 6,059 total .38/44 Outdoorsman Model 1950 built from 1950-57. This includes early ones with the upper sideplate screw (5 screw 1950-54) and the later 1955-57 with sideplate screw deleted. (4 screw) I would gues most collectors would pay extra for a 5 screw, and of course an original box, tools, and papers adds a lot to collector interest on any gun.