100-400 USD or so
50-400 USD or so
Retail value about $400, depending on condition. A dealer may allow half of that on a trade in (they need to make a profit to stay in business)
No such Ruger ever made
Can't be answered with just that information. Which Ruger?
Not a complete question.
100-300 or so
Zero. Ruger never made the P38.
50-200
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
You will have to call Ruger for the age; 100-400
Ruger's website has sn data you can look up.