The definition of "coverage" has changed a bit over the years. So did the lenses, old ones are less sharp around the center but a bit better in the corners. Newer ones have a larger field of "modern sharp" but fall off a lot faster toward what WAS the edges.
I have a photo somewhere taken with a 210mm Angulon with full rise on a Gandolfi 10x8"; the top is definitely fuzzy but not too bad for a contact print.
Here it is! http://www.apug.org/gallery1/showima...&imageuser=124