No serial number given = no answer.
1954.
1955
and the model is..................................
.22 cal
Around 1955.
K130218 was produced in 1951
1961-1962
Go to proofhouse.com and take your pick.
1977
Model number will be inside the crane area when you open the cylinder.
Standard Catalog of Smith and Wesson, 3rd ed. Bring it in to a professional. S
1977