The activity, function and appearance of these Greyhounds are incredibly similar to Greyhounds today.
The Pierpont Morgan Library in New York also has a copy of this manuscript with similar illustrations. Selected illustrations were presented in Medieval Dogs Brought to Light, in Pure-Bred Dogs / American Kennel Gazette, September 1992.
Greyhounds (c.1500)
Gaston Phoebus, Book of the Hunt
Pierpont Morgan Library
M.1044, f.37v