I just picked up my match target second edition . It has a three digit #starting with 3xx-s . Are the guns serial number s run concurrent with years . I think I have one of the first guns made in this configuration. What year would this be from . The boar is exelent and shiny no pitting . There looks like holster wear near the muzzel . I would put it at about 85%+ Could anyone tell me about this gun . I figure its around mid to late 1940s . Thanks F.K.