Installed the butt on my N.E. Fowler, and was very surprised at the soft,workability of the brass. When I first saw it, I thought it would be a pain, since it looks to be investment cast. I usually work with sand cast brass, avoiding investment stuff if at all possible. If this stuff is so good, why is the other lost wax stuff I've had the displeasure of working with, seem to be the norm. It can't make that much of a difference in price, since all of the investment stuff is way more $ than sand cast in my experience.
The last fowler butt plate I worked with was awfull to work, and would not anneal at all. I ended up cracking it, and had to buy another one. I actually swaged a fowler plate because it seemed all the ones I could find were investment castings and I didn't want to go there again.
Based on this plate, I may have found my source for fowler brass.