Good lookin' set of SA"s. Seen pic before but most worthy of multiple posts. You're aware of my "luv" for USFA"s, and yours is Sweet, however I also have a soft spot for Flat-top Blackhawks, particularly with Jim Stroh's front site and the addition of Sheffield's antique paper micarta grips. Silver and white to me is a great combo! I purchased a medium sized sheet of 3/8" antique white paper micarta from Sheffield a couple years ago, but no grips from it yet.
CC .... I'm curious to know if you've noticed the micarta grips becoming a deeper cream color since being fit to your flat-top? I had a set of genuine Elephant Ivory grips made for my Colt Python 40 years ago and have developed a beautiful deep rich cream color patina and look fantastic, with no visible cracks. It's my understanding that Sheffield's paper micarta ages similarly to the old Westinghouse paper micarta and much like real Ivory, consequently my question.
For whatever it's worth, the only thing I do to help preserve and prevent shrinkage of the Ivory on my gun grips (and custom knife handles) is spray some Balistol over the entire grip area, including frame and entire gun, every 2-3 years. Still a perfect fit with absolutely no shrinkage. When cleaning a handgun, I'm in the habit of never removing the custom grips after being fit by the grip maker. I'm sure it wouldn't hurt to give the same Balistol treatment to paper micarta.
Big Rack ..... got a little off topic ..... sorry for hijacking your thread !