Very, very nice...
I have seen them on 3 screw Super Blackhawks, using the Supers squared off trigger guard, like yours. Most were offered on Super Blackhawks, but some did make it to the regular Blackhawk line. I attached a link that may help, and yes, real Ruger brass grip frames are worth some $ to collectors.
I attached a couple of paragraphs from Bill Hamm, talking about the brass grip frames -
"Brass “Dragoon” style grip frames with the square back trigger guards for the Super Blackhawk were delivered to Ruger in the Spring of 1964. Supers with brass grip frames, model S47-B, were first offered for sale in the 1966 catalog. Non-prefix serial numbered Supers that will factory letter with a factory installed brass grip frame are very rare and highly sought after by collectors. These grip frames could also be ordered as an accessory for $20. They came with a Super Blackhawk wide serrated trigger to fit in the wide trigger slot found on the brass frames. These brass grip frames could be fitted not only to the Super Blackhawk but the earlier .357 and .44 Blackhawks and the Single-Six as well. The proper size Super Blackhawk grip panels could also be ordered at an additional cost.
These “Dragoon” style brass frames were later offered as an option on other Blackhawk models and the black powder Old Army. On one day only, in early 1968, just over 100 Supers were fitted with a brass grip frame and are found serial numbered in the 33XXX – 36XXX range. A small quantity of the 6-1/2” barreled guns are known to have been fitted with a brass frame. During the last months of 1972, as Old Model production was coming to an end, just over 1500 Super Blackhawks were fitted with brass grip frames. The brass frames were utilized to get rid of existing inventory; the frames would not fit the New Model guns and there would be no market for them later. They were installed on the Supers and, because there was no price differential, the shipping invoice did not indicate a brass grip frame. The bulk of these will not “factory letter” since there was no extra charge noted on the invoice.
Notwithstanding, a new 800 page book has been drafted and is scheduled to be published in 2007 specifically addressing the collecting of classic Ruger tools, pistols and revolvers and, among other things, will list the factory installed brass grip frame Super Blackhawk serial numbers. The book, entitled For WBR is being written by my friend John Dougan, President of the Ruger Collectors Association, collector, researcher and author of several other fine books on Ruger collecting. Through an exhaustive search through factory archives, John has identified the elusive and previously unknown factory installed brass framed Super Blackhawks. I am certainly looking forward to getting my hands on this new book of knowledge."
A few years back, I created my own, in SS. This short barreled Super started out with a regular round trigger grip frame, the only one available in this barrel length. I ordered a Ruger Dragoon style grip frame from the factory, and fit it to the gun. Makes for a nice, one off packin pistol.
The link-
Ruger SA Grip Frames - 1953 to Present
Larry
