[LugerVern]

I would like to replace a couple of grip screws on an imperial gun: 1910-1912 time frame.
1) Is there really a difference in the curvature between imperial and post WWI screws?
2) Where imperial screws rust blued or heat treated?
3) Is there a source for new manufactured grip screws?

I was trying to follow Costanzoâ??s pictures on page 278 but have seen such a mix on guns; I donâ??t know what to believe.

Yes, I have read the previous posts, and have Johnâ??s disk.â??thanks, John by the way.

Thanks

Vern