The blue receiver 12 gauge shotguns (and 20 gauge as well) were made for ORVIS. Here's what I have on the 12 from the reference:
"Orvis" special production blue receiver RL-1226 and RL-1227 with skeet/skeet/modified/full choke tubes (blued shorter Winchester thread pattern). Known s/n's 410-56944, 410-57175 and 410-57621 (RL-1226) and 410-57313 and 410-57321 (RL-1227). Very limited production. Orvis is a famous outdoors outfitter. Only five known. Extremely rare.
I would very much like to add your sn to this list. Please send me a PM.
With no more of these ORVIS guns that have ever shown up in 12 gauge or 20 gauge, I have serious doubts as to whether more than 250 were made in each gauge.
Do any RF members have any contacts with somebody at ORVIS?? Maybe some good production info could be found?
Chet15