Ruger's web site has a sn date function
100-350 USD
There's no way to answer this question without knowing exactly what needs to be fixed.
Ruger uses a model number, such as 0804, but the suggested retail price of a new Super Blackhawk stainless 44 Mag is $829.
200-400 USD
100-500
Depends on finish, barrel, condition- ranges from ABOUT $225 for a well used specimen to about $475 for a new-in-box.
50-500 usd
$600 USD
The replacement value of a Ruger KBN36 .357 Mag Blackhawk stainless steel revolver typically ranges from $600 to $900, depending on its condition, age, and market demand. Factors such as original packaging, included accessories, and any modifications can also influence the price. For an accurate appraisal, it's advisable to consult local dealers or online marketplaces for current listings.
It lets you know that it was made prior to 1973. Often referred to as Old Model Rugers.
Send it back to Ruger.
100-1000 USD