I have Triple Lock pair with gold (brass ?) medallion & 24 lines/inch checkering. The rim of the medallion is level with the surface while the S&W logo itself is recessed about the thickness of a dime. A second pair of N frame grips, same diamond style, 20 lines/inch with silver (nickel ?) medallion. This medallion is flat & level with the surface.

Could the second be a later (English contract?) TL pair - or what N frame are they for? They came on a .455/.45 Colt converted TL.

Info & discussion appreciated.