The Ruger website (under customer service, historical data) list serial numbers by year. Value will depend on exact model, type barrel and sights, and condition, box, paperwork, etc. Generally anywhere from $100-$200.
You will have to call Ruger for the age; 100-400
Ruger has extensive sn data on their web site, if it is up. Value could be 50-500 depending on specifics.
Impossible to value on just the serial number. Call Ruger and they will tell you how old.
A call to Ruger will get you the answer.
Ruger has a sn function on their web site. Value range from 100-250 USD Ruger has a sn function on their web site. Value range from 100-250 USD
1965
Ruger has extensive sn data on their website. Value will depend on condition, box, accessories, papers, etc..
Ruger has sn data on their web site. 100-375 USD
Ruger will tell you if you phone customer service.
$100-$250, depending on condition.
1966
Ruger's website has extensive sn data. 75-175 or so