100-400 or so
Ruger's web site has sn data.
i see them on auction for around $500 all the time
Ruger has sn data on their website.
The model name of the single-action Ruger .30 Carbine is the Ruger Blackhawk. This revolver was designed to chamber the .30 Carbine cartridge, making it unique among handguns. It features a single-action mechanism and was produced in limited quantities, appealing to collectors and enthusiasts of both Ruger firearms and the .30 Carbine caliber.
Ruger has a sn function on their web site.
Ruger has sn data on its website.
1971
100-400 or so
Ruger has a sn function you can use on their web site.
Blackhawk.
50-500 usd
50-500 depending on specifics