21-1/2\ x 27\ \Prarie Wolf, No. 15, Plate LXXI\ from \The Viviparous Quadrupeds of North America\, 1845. Hand-colored lithograph, Imperial Folio, printed and colored by J. T. Bowen, Philadelphia, 1845, matted and framed under glass in a gilded wood frame, overall 31-1/2\ x 37-1/2\. Arader Galleries