Nice job RR. Did you happen to get the BKH45 also? If memory serves me I chased down 45-00006 for Adamson and Fairbanks about 30 miles from me. I could be off a digit or so on the number but it was a single digit. Perhaps Steve can chime in. Either way, enjoy looking at the single digits.
GW
Rod,
So the sleeve stamp just says RSSM?
Be sure if the cylinders are chambered for .22 LR or .22 Mag.
I think it is #300023 that has a Mag cylinder in it but at the rear is a firing pin groove (they hadn't yet decided to make the mag cylinder without the groove at the time that cylinder was made... pre-production stuff).
By the way... that is a real prize in a low Mag. marked Single-Six... most of the subscribers at that time didn't get their example.
It would be interesting to see how 300006 shipped, as RSSM or RSSMX. My bet is, you have two cylinders there that are both chambered for Mag.... and one has a firing pin groove.
Chet15