I remember when Ralph used to start talking about them having dished toggles and a beautiful finish, he got this excited look in his eyes over them. They really are nice and this shot highlights the top of the toggle showing that shape that is so great.
A 1900 American Eagle Commercial Luger Cannon (the top section with out the frame attached)
These had dished toggle knobs with a toggle lock and strawed extractor in caliber 7.65mm Parabellum (US designation is 30 Luger Caliber) A real beauty I finished in rust bluing.