You can call Ruger or visit their website.
1974
It was manufactured in 1982.
Ruger has sn data on their site. Currently, my ISP won't let me access it.
The Ruger website, under customer service, historical data, lists year of manufacture.
50-175 US Dollars
A LOT! These were in production for many years, and a very popular gun. Check with Customer Service at the Ruger website for some specific answers.
50-200 USD. Check the auction sites also.
Ruger website, customer service.
The Ruger .22 Mark I, with serial number 15-41003, was manufactured in 1970. Ruger typically produced the Mark I series from 1950 to 1982, with serial numbers providing a way to determine the year of production.
I purchased a new one for $37.50 New in the box!!
You will have to call Ruger for the age; 100-400
Ruger has sn data on their website that you can check.