Need to know if it is a revolver or pistol. What is the barrel length? What markings are on the frame/barrel? What type of finish? What are the grips made out of? Pictures are a big help. Does it have the original box, manual, etc.? Without this information it would be a pure guess.
100-400 USD
Impossible to answer without knowing who made it.
Ruger's web site has sn data.
100-1000 depending on specifics
No such model in the Ruger line.
Ruger's website has serial number data on its products.
Go to the Ruger website. There is a section to date your 22 by serial number.
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.
Depends, you can still buy brand new ones from china. Authentic though are about 200 years to 100 years old.
If Ruger's website is up, they have extensive sn data on it.
Ruger has a sn search function on their web site.
Go to Ruger's website. They have a sn look up section.