these will range in price from 300-475 dollars,depending on overall condition,and a good bore.
Yes
100-300
Ruger's web site has a sn date function
No such model exists. The .357 Magnum cartridge was not put into production until 1935, and Ruger was not established until 1949.
150-300 USD
$100-$300, depending on condition
100-400 or so
100-400 USD or so
50-350 usd
100-300 USD or so
50-1500 USD depending on specifics.