I have several Lugers and a Borchardt, but no Artillery model. I almost got a Luger Carbine one time, but got beaten out; I had the money, but was just too late.
I have done some digging and the guy's name was Mitchell, and he worked out of Santa Ana, CA. When his company folded, Stoeger tried to start production in Texas, but I don't think there were many guns made. Mitchell made quite a few, but I don't know the production figures.
The "Stoeger Luger" was the .22 that was made in this country. While it used a toggle and was marked "STOEGER LUGER" (remember, only Stoeger can use the Luger name), it really resembles a Luger in only the most general way.
Some sidelights. In the late 1940's, a cheap plastic cap pistol, a scaled down copy of the Luger, was put on the market. It actually fired a BB with the power from a paper cap. Of course, it was little more than a slightly dangerous toy and about worthless. It was called, probably in an attempt to play on the name, the "Kruger". (No, Freddy had not yet been heard from.)
So when another Luger copy appeared on the market, even though it seemed to be a real gun, many folks thought it was another cheap ripoff and yet another attempt to play on the name and fame of the genuine Luger. That gun was made by a couple of young kids in an old barn, so it was not likely that they would ever amount to anything and buying a gun from an outfit like that seemed like taking a chance. Even their names were obviously silly aliases - Sturm and Ruger.
Jim