Go to the customer service section of the Ruger website, and look in historical data. Select revolvers, find your model, and see the serial number tables.
Ruger's website has a sn function.
Ruger has extensive sn data on their website.
Ruger's web site has a sn date function
Ruger has extensive sn data on their website.
Ruger has a sn function on their web site.
A call to Ruger will get you the date it was made
Ruger has sn data on its website.
Contact Ruger through their website. IIRC, Ruger has information on their website to check date of manufacture.
1971
1983
Ruger has a sn function you can use on their web site.
Ruger has extensive sn data on their web site you can access.