Just curious. During WW 1, I know that both Colt and S&W made M 1917 revolvers in .45 ACP to supplement the 1911s, but did any M 1909s see service? They would only be a maximum of 8 years old in 1917.
Not on the same wavelength?
1909 Colt AUTO = 22 made developmental toward 1911.
1909 Army/Navy/USMC issue New Service REVOLVER - GI until a satisfactory auto could be obtained, I don't know how many, but book price for the Army is only a little more than for commercial New Service, Navy and USMC about double the price. I have seen some at gun shows and in advertisements. No mention I have seen of WW I use.
In all the 1910 and 1911 testing of auto pistols leading up to adoption of the Model 1911, a Model 1909 revolver was shot the same number of rounds as a control. IIRC, there were no failures attributed to the gun.