Audubon, John James (1785-1851): Plate from the imperial folio edition of The Quadrupeds of North America, Richardson's Ground Squirrel: Spermophilus Richardsonii, Sabine, Richard's Spermophile. Bowen, Philadelphia, 1844.
Plate depicts male and female in their natural habitat; image printed by stone lithography and hand coloring; upper left corner labeled "No. 10"; upper right, "Plate L"; lower left, "Drawn from Nature by J.J. Audubon, F.R.S.F.L.S."; lower right, "Lith. Printed & Cold. by J.T. Bowen, Philad 1844"; folio, the full sheet, framed, not examined out of frame, 21 x 27 in.