Pine Cone2 and Iggy both make very valid points. For a K-22 made in 1948 and shot so little, with box and papers, I'd guess an upper value would be north of $800. I just paid $8xx for a 1950 K-22, probably 95-98%, no box or papers. Similar K-22s on Gunbroker, with box, seem to be fetching $900 to $1,000, IF they sell. Given the history of yours, IMHO, I'd keep it, shoot it and enjoy it.