Manufactured in 1906, this is one of only 6,210 Colt "Military Model of 1905" pistols manufactured over a period of six years. These pistols are a very important evolutionary step in the development of Colt automatic pistols and the Model 1911 as they were the first production Colt automatic chambered for the legendary .45 ACP cartridge. The left side of the slide is marked with the two-line, two-block patent dates and address, with the circled Rampant Colt behind the serrations. The right side of the slide is marked "AUTOMATIC COLT/CALIBRE 45 RIMLESS SMOKELESS". The left side of the frame is marked with the serial number and the left of the trigger guard has a "VP" proof and "W". It has rounded blade front and rounded top notch rear sights, and the rounded checkered hammer. It is fitted with a pair of diamond pattern checkered grips, an unmarked full blue magazine, and a smooth back strap not cut for a shoulder stock. On p. 219 of "The Government Models: The Development of the Colt Model of 1911" by Goddard, it is stated that this pistol was shipped on 25 April 1906 to the China & Japan Trading Co., Yokahama Branch. The China & Japan Trading Co. became incorporated in 1876, succeeding a firm that had dealt with trade of a plethora of goods in China since 1844. Around the time of The Boxer Rebellion the company was operating out of New York and had mostly come to concern itself with the trade of raw silks from China, cotton products from the U.S., and likely a similar movement between Japan and the U.S.