Gun Ring - Ca. - was originally designed for ladies. (I read they got very hot after firing. and given the way people move their hands around, I would think wearing a loaded weapon on your finger would not be a very good idea.) MY KINDA JEWELRY
The first moderately successful automatic pistol. The design was reengineered by Georg Luger in 1900 to become one of the best known handgun in history, the Luger pistol. Its ammunition was copied by Mauser for their pistol and renamed Mauser.