It's a Wollensak triple convertible, if my eyes don't deceive me, likely of a design that will cover at least 4x5. Hoping for 5x7, but I'm not going to hold my breath. Needs a good cleaning, but if the shutter at least functions I can probably get the thing back to working condition without having to do *too* much taking it apart. We'll see.
That board is going to have to go, though. I'm crossing my fingers that it will actually fit the Speed Graphic board I just found. If so, I'll likely use it as the shortest focal length for that particular camera.