Originally Posted by DWalt

I list two K22/40s, also SN 6875xx, both of which shipped on 5/16/1940. Yours could well have been in the same shipment. This is indeed one of the "Holy Grail" K22s for certain collectors of the breed. S&W got too enmeshed in producing military revolvers for the British at that time, and essentially stopped all other revolver production for the peacetime market. When production resumed after the war, a number of changes were made to the K-series target revolvers.