John James Audubon, Plate 21:
Grey Fox. From Audubon’s "Viviparous Quadrupeds of North America." Imperial Folio; Published in Philadelphia between 1839 and 1844 by J.T. Bowen. Originally issued in 30 parts, 5 plates per part. In collaboration with his sons, Victor Gifford and John Woodhouse Audubon. Measurements: 22 x 27 1/8 inches.