There is no information available about a specific K22 submarine. It is possible that the designation or the information about the submarine is incorrect or not widely known. If there is a specific incident or event associated with the K22 submarine, more specific details would be needed to provide an answer.
1988
Year is 2000.
1969-1984
according to that serial, you have a 1915 rifle. I have seen a 1917 that was sold for 2900$.
1972
1948
1948. Worth spending the $30 to get it lettered by Smith and Wesson, IMHO.
1954
racrolelt
@1947
K130218 was produced in 1951
Look on the butt of the revolver.
i think 1966
Minty K22's can bring $500, or more in rare variations. I don't think that is the serial number however. The serial number will be found on the butt of the gun, not inside the crane.
Standard Catalog of Smith and Wesson, 3rd, ed.
Call S&W with the serial number or look it up in the Standard Catalog of Smith and Wesson, 3rd ed by Supica and Nahas.