Borchardt C93

 The Borchadt C93 is one of the most unheard of gun there is. It id the first semi auto pistol ever. It was designed by Hugo Borchardt in the year 1893 in Germany. It is chambered in 7.65×25mm Borchardt. This round was the basis for the .30 Mauser and the 7.62mm Tokarev.
 

Its toggle locked design was later used on the Luger P08. An estimate of 3000 of these guns were made, but only a handful exists today.