Mauser's exotic C96 is often called the Broomhandle because of the distinctively shape of the butt. It is a very strong, recoil-operated auto that is laid out a lot differently that most other autos.

Initially the C96 was chambered in the 7.63x25 mm Mauser, but by 1902 it was made in 9x19 mm Parabellum, usually, but not always, distinguished by a large red “9” burned deeply into its wood grip.

C96 “Broomhandle” 7.63 mm Mauser History & Specifications. ... a standard internal magazine capacity of 10 rounds, and firing an original 7.63x25mm Mauser (AKA .30 Mauser) ...

C96 Broomhandle 7.63 Mauser and Type 14 8mm Nambu Live-Fire Range Reports. January 7, ... a standard internal magazine capacity of 10 rounds, and firing an original 7.63x25mm Mauser ...