Manufactured in early 1908, this is a rare example of a two digit serialized U.S. Army test trials Colt Model 1907 semi-automatic military pistol in .45 ACP. According to "U.S. Military Automatic Pistols 1894-1920" by Scott Meadows, a total of only 205 of these pistols were made, 200 of which were for field trials and 5 for presentation. Most of the pistols were delivered to Springfield Armory in March 1908 to be issued for troop test trials with the U.S. Cavalry, with the balance being for presentation purposes and many likely not surviving the grueling military trials, making surviving examples few and far between. These pistols were serial numbered in their own range between 1-205. This pistol is listed by its serial number, 15, on page 83 of "U.S. Military Automatic Pistols 1894-1920" by Meadows, as one of only 66 known surviving examples of these rare trials pistols. These pistols have remained an important evolutionary step towards the iconic Model 1911 and represent the U.S. military's first foray into pistols chambered in the legendary .45 ACP cartridge. These pistols were equipped with a new spur hammer design, modified ejection port, externally visible chamber indicator, modified ejector, fixed lanyard loop on the lower left of the grip frame, and new special grip safety with spur. The left side of the slide is marked with the two-line, two-block patent dates and the Hartford address, and the right side has the standard two-line caliber marking. The serial number is marked on the left side of the frame, and the inspectors initials "K.M." (Major Kenneth Morton) are on the upper left front of the trigger guard bow. The grips are checkered walnut with a diamond pattern around the screws. Includes a modern custom made leather case with fitted felt lined interior, an extra reproduction magazine, L-shaped combination tool, and a reproduction "APR 1906" dated sealed box marked with Frankford Arsenal markings of the period, and a Turnbull restoration invoice.

Very fine as professionally restored by Turnbull, retains 99% high polish blue and niter blue finishes, and 99% case colors on the hammer. Replacement grips are also very fine with crisp checkering. Mechanically excellent. A rare and significant Colt Model 1907 U.S. Army test trials pistol.