Yes, I've ID'd it as the early Calumet, and there are a couple other cameras with the same board.
I got it with a 90mm Super Angulon F8, someone picked it up at an estate sale; lens was mounted the wrong way on the board for some reason. Lens and shutter look brand new, shutter may need a servicing but overall a nice find!
Looks like the Calumet 400 Series. These were frequently reversed in order to allow use of longer focal length lenses on the Calumet Wide Angle (CC402?)Camera. The same camera did not require a recessed board for 90mm lenses... actually, for someone who works only with wide-angle lenses (in 4x5) the wide angle Calumet is a great choice due to price and functionality.
Joel