100-500
Ruger uses a model number, such as 0804, but the suggested retail price of a new Super Blackhawk stainless 44 Mag is $829.
100-400
100-400 usd or so
RUGER PISTOLS ARE GOOD GUNS, ABOUT $600
50-350 usd
Storm ruger 44 magnum 10 inch barrel What is it worth
Ruger's web site has sn data.
Ruger's web site has a sn date function
A call to Ruger will get you the date it was made
500 or so
Blackhawk.
100-400 USD or so