100-375 USD
If you mean a Sturm Ruger, about 300 USD
ABOUT $200-$300, depending on condition, and WHICH version of the Blackhawk.
200 or so
100-1000 USD or more depending on specifics
About $600.00
Ruger's website has extensive sn data.
100-350 USD or so
$100-$300
100-1000 USD depending on EXACTLY (OMBH, NMBH, Security Six, Redhawk, etc.) what you have and its condition.
100-300 USD depending on condition.
Call Ruger and they will tell you. SN info is also on their web site if you can access it.
Its a pistol. More specifically a 6-shot, single-action revolver, made by Sturm Ruger and Company.