This is an extremely rare all original DWM "Prototype" Model 1900 Luger pistol made with a special 6 7/8 inch, rapid taper barrel and matching prototype, "push-button" shoulder stock. All of these early prototype Lugers were made in unique and individual configurations with NO two being exactly alike. These pistols were all numbered with a special, five-digit type serial number in the 10000 range with this specific example numbered "10034". The prototype pistol barrel is very unique being 6 7/8 inch long with the fast taper configuration that is stamped with the "Crown/B, U and G" proofmarks with the full serial number along with "172.28" indicating the bore diameter. With the "Crown/B and U" proofs on receiver, breechblock and front toggle link. The other rare/unique aspect of this prototype pistol is that the heel or lower back strap area has been machined for a stock lug (which had not been made before this time) and the pistol has been fitted with an even rarer matching numbered "push button/prototype" attaching stock iron and original flat board style, shoulder stock. This "push-button" prototype stock iron, was the original design, developed by George Luger and was discarded in favor of the simpler locking lever type mechanism. It is estimated that not more than 4-5 of these push-button prototype stocks and attaching irons were ever manufactured, certainly making it as rare as the pistol itself. The pistol itself has the early style dished toggles with toggle lock on the right side, early flat/recessed breech bolt. The frame has the correct pattern, polished lower safety area with the second type thumb safety that has the short domed checkered pad. The pistol is correctly fitted with the narrow trigger. This beautiful prototype Luger is fitted with matching numbered full checkered wood grips. This outstanding rig is complete with a very early, correct style, black leather holster with shoulder strap and original cleaning rod with oiler along with an original double leather magazine pouch and three original unnumbered tin plate early magazines. It has been noted that this rare prototype Luger rig originally came out of Chile in 1990 and at one time had an original accompanying certificate from the Banco De Pruebas De Chile which bore an intertwined "B/P" proof inside a shield on the certificate. This exceptionally rare Luger also has that same intertwined "BP" inside a shield proof of the Banco De Pruebas.