http://www.rockislandauction.com/viewitem/aid/1025/lid/351

The Campo-Giro was Spain's first indigenous self-loading military pistol, adopted in 1912 to replace the Belgian 1908 Bergmann-Mars. Only a small number were made of the original M1913 variety, with the vast majority being the later and slightly more refined M1913/16. This particular example at RIA is an early one, and particularly interesting to look at for that reason. The gun is a straight blowback design in 9mm Largo, and only lasted as Spain's standard pistol until its descendent, the Astra 400, was adopted in 1921.