Ruger website, customer service, historical data- and you need the MODEL of the pistol. Your serial number indicates that your Ruger pistol was made in the year 1976.The ending serial number for that year was 13-48646.
Ruger's website has serial number data on its products.
Go to the Ruger website. Customer Service, historical data, pistol, your model, and check serial number range.
Go to the Ruger website. There is a section to date your 22 by serial number.
The brand is Sturm, Ruger, not Strum- and we cannot tell without a serial number, However, if you visit the Ruger website, look under customer service, historical data, pistol, you can find your model, and the serial number range for year of manufacture.
Ruger can tell you when it was made and what it is if you call them
The numbers 10-21133 are the serial number that was assigned to your Ruger Standard Mark I pistol,which was made in the year 1969.
Go to the Ruger website, customer service, historical data, pistol, find your model, and there is a serial number/ year of production list.With the serial number that you provided,your Ruger standard model single six revolver was made in 1960.If you have a standard model automatic Mark I pistol,it was made in 1957.
50-500 US Dollars
Ruger will tell you if you phone customer service.
If you find the serial number of YOUR Ruger, go to the Ruger Website. Under Customer Service you will find a link to historical data. You can look up the year of manufacture by serial number. Since you did not share with us what your serial number is, we don't have a clue.
Impossible to value with just the sn.