Single-Six Standard Model Revolver (Manufactured from 1953 to 1973) Caliber: 22 LR
Beginning Serial Number:	Years of Production:
1	1953
50	1954
10734	1955
31857	1956
55346	1957
88245	1958
122480	1959
151189	1960
171403	1961
187367	1962
20-00001	1969
20-39803	1970
20-77705	1971
21-16995	1972
21-53819	1973

The above chart shows the approximate first serial number shipped for the indicated year. This number should be used as a point of reference only. It is not necessarily the very first serial number shipped, but it can be used to determine the approximate year your Ruger firearm was shipped.

Ruger does not necessarily produce firearms in serial number order. There are occasions when blocks of serial numbers have been manufactured out of sequence, sometimes years later. Also, within a model family the same serial number prefix may be used to produce a variety of different models, all in the same block of serial numbers. And in some cases, firearms may be stored for a length of time before they are shipped.

For details on your specific serial number you may contact our Service Department: 336-949-5200

For serial numbers manufactured prior to our electronic records, or for an official letter confirming the details on your firearm please download and mail in the Request for Letter of Authenticity form.