Warren,
A beauty! You know how much I like orange and amber stag! Here's a "NON" A.G. Russell. No S/N, as I bought it out of the Randall shop's case! Obviously a long time ago. It came in a Model #11-4" sheath and I also got a brown-stitched AG sheath. Go figure?? I cannot explain why, but there were 6 of them in the showcase. Here's a photo or 2. Not as "amber as yours, but it was the neatest piece of stag in the case to choose from...and it is extremely functional.
Best, Capt. Chris