Thanks, Mike. The black and white photo was taken by Greg Roberts, production manager of the Green River Rifle Works in November, 1975 when they had the Bridger rifle in their shop. I handled it there in 1978, we even took the lock out of the stock. Greg took a roll of 35mm film, the pictures are dirty and have coffee spilled on them, but I photographed all 24 of them. Maybe a smarter friend can help me clean them up in Photoshop, or Paint or some such. Bob is bringing me a new modern computer in about a week, will work on it then. This one was taken by my friend Dave Boender.
This is Carl Walker, gunsmith from GRRW, holding Greg's photos. I copied each one with a digital camera.
Greg made a detailed tracing of the Bridger rifle, with measurements and comments. I made a copy of this for myself.
This is probably the photo you showed, but cropped for enlargement.
It is tricky scaling photos. The Bridger lock is 5.0 inches long (I measured it at Helena museum), and the trigger guard is 5.6 inches long. But when I scale it off the color photos, I can only make it about 5.4 inches. It scales about the 5.6 inches on the B&W photos. I also get the buttplate about 4.25" in ;the color photos, but I measured it at 4.5". And the real length of pull on the Bridger Hawken is 13.25", not the 13.5" shown with Montana's photos. I gave the museum curator, Mr. Reimer, all my measurements, including the barrel length, width across the flats at breech and muzzle, and the correct length of pull when I handled, measured and photographed the Bridger at the museum in September, 2012.