Would you believe it also covers 8x10? It does. I've attached a recent photo, corners aren't dark. The vertical line at right is from dust in my scanner lamp.
Sharp, uncoated and in fine condition.
Some dust here and there, and a couple of bubbles in the glass, all housed in a pretty Compound shutter.
Speeds are working well, 1s is a bit fast.
Focal length is 210mm.