Proofhouse.com has Winchester serial number tables.
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manufacture is when you make something in a factory on a certain date then you also write the date on the thing that you made!:)your welcome for the answer
1932
1946
Call S&W and they can tell you when it was shipped. The date it was made could be a few months to a few years before that.
Call Colt and they will tell you.
Call S&W and they will tell you.
Call S&W
Call S&W with the serial number and they will tell you.
1928 Fred
1912
year 1946