Would it be accurate to call the "little brass washer" a counterbored and knurled brass escutcheon?
I've always assumed they are grooved or serrated on the OD rather than knurled, but, of course, never knocked one out to see.
I've never knocked on out either, but they do look to me like straight knurling, or lengthwise grooves around the outside diameter.
Looking through some pictures and found a rifle without one. This is one of the Russel Smith rifles, and the screw is in an ivory escutcheon. There is a matching ivory grip cap that is otherwise the same as the other rifles.
John
