Call Ruger and they will tell you. SN info is also on their web site if you can access it.
50-350 USD or so
ABOUT $200-$300, depending on condition, and WHICH version of the Blackhawk.
New Models did not begin production unitl @ 1973
100-1000 USD or more depending on specifics
A call to Ruger will get you the answer.
Give me a serial number and I can help. Length of barrel, finish and grip material will help too. serial # is 72728, the length of the barrel is six and one half inches with a blued barrel and a wood grip
Sturm, Ruger was founded in 1948 by William Batterman Ruger with a $50,000 stake from Alexander Sturm, a family friend and gun collector.
50-200 USD
Sturm was the name of one of the founders of Strum, Ruger and Co.
That is the correct spelling of Ruger, which is named for William Ruger of Sturm, Ruger & Company.
Strum Ruger made many 22 caliber hand guns. It would help if you Identified the model
RGR