OK. the thing arrived! It cost me $22 plus $13 s/h
It's 4.5 inches square at the lens board. and 5.5 inches square at the back. Fully extended it is about 11 inches long. The bellows and standard are attached to a huge geared double shaft. It's mighty BIG.
I bought it just for the bellows. MUCH cheaper than a new bellows anyplace else. Now if I can find a camera that it will fit.
Here's a pic of the thing.