Ruger has sn data on their website.
Yes.. all pre-73 Ruger Single Six pistols will be upgraded by Ruger.
Ruger has extensive serial number data on their website.
Ruger's web site has sn tables.
Ruger's web site has sn data.
Ruger's web site has extensive sn data.
No such model in the Ruger line.
Ruger's website has extensive sn data for all to use.
Ruger's website has serial number data on its products.
Ruger's website has extensive serial number data.
Ruger has extensive sn data on their website. You will have to go there and look it up.
Ruger has detailed sn data on their web site.