[Ron Wood]

9mm Carbines have been around for a long time. Back around 1968 I found a beautiful 9mm 1902 Carbine in Alamogordo, NM. It had come out of a collection of a retired Air Force NCO. It was for sale, but $2500 was a lot of money for a new Captain with couple of kids, so I had to pass.
I do not see any compelling reason to suspect the "1914 Commercial Carbine" is anything other than what Charlie says it is. Waffenfabrik-USA isn't responsible for every Luger that doesn't fall neatly into a particular category.
I do not know if the Carbine that Ralph has, or had, that formerly belonged to John Morgan is the same one I am acquainted with. I do know that John was a consummate craftsman, capable of world class machining and restoration. John made a Carbine, and I know this because I gave him the stock lug that he grafted onto the Carbine. It was left over from a junk frame that I had cut the web out of to convert a 1900 frame from a flat mainspring to a coil mainspring. John had many Lugers, so the Carbine that Ralph was selling may or may not be the one John made. The serial number range makes me suspect it might be, since 36640 is pretty low for a 1920, or even a 1914.