I'd guestimate that it is anywhere from 1948 to 1950. I cannot give an exact answer due to the lack of info I have. Using the info from the website below, and assuming production was evenly distrubuted from Jan 1, 1948 to Jan 1, 1968, we can mathmatically assume that it was made in 1948.621783 (or August of 1948). Of course, our assumption are not that accurate, but it would be safe to say after 1947 or as late as the early 1950s. http://www.remington.com/library/history/firearm_models/shotguns/model_48_sportsman.asp
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