For the value of that collector's grade unfired early '60's Super Blackhawk .44 Magnum, I would contact the official Ruger Collector's Association. I believe they have a web site.
As a WAG, I's say at least TWICE retail list price of the current production Super Blackhawk. That would assume that it truly is AS NEW, UNFIRED, and unmodified to the New Model Blackhawk action (or at least with all the old parts included).
HTH
John
