John,
I have certainly seen Wirgin Autas with a Compur shutter on it, but never one branded Kodak, with a Kodak Anastigmat lens. If I were to hazard a guess, I would say that the lens/shutter is a modification done to the camera, not original. As the 105mm focal length is native to this camera model, it's entirely possible that someone could swap out another shutter with a 105mm Anastigmat lens in it, and it would work fine. With any luck, they took the time to calibrate the focus and add/subtract shims to correct any differences.