Sir John, when Viramontez used metal handled gravers and a metal hammer he always attached a thin layer of leather on the end of the graver handle to soften the shock of metal to metal blow...claiming it helped graver tips to last longer.
I know one engraver who uses a "hammer" that is a mallet with a bulb like on a normal chasing hammer on each end. I have one he sent to me and it works fine. My home made chasing hammer is basically standard but I put a flat in the handle where my thumb rests when properly oriented so I don't...
Jerry, I would call Doug Turnbull and get his input. I started a good many years ago leaving off the finest detail for inlays that are going through the rust blue or case hardening process, finishing them after the process.
I would think fire scale would be the prime worry and I just don't...
If I remember correctly Ray died in Oct or early Nov of 2016. He was one of the founding members of FEGA and I think the first treasurer of the guild. As has been said, he was a real prince of a guy and well liked by every one.
He was a camera operator for a photo mapping wing when I met him...
Ray learned gun engraving on a dare when stationed in Germany. His teacher was Werner Shuck. One of his fellow USAF members was showing off an engraved gun he had just acquired and Ray made the comment he could do better...thus the dare. I had the pleasure of living across the street from Ray...
Fox...the optivisors are diopters same as reading glasses...not true magnifiers but allow closer focus. I use the #10 lens Optivisor which is (I think) 3.75 dioter and focuses at about 4 inches...so yes, I get right into my work as commented by Alain Lovingberg when I took his 2012 Master class...