After J.W. Audubon, “The Viviparous Quadrupeds of North America”, No. 19, Plate XCI, depicting a male polar bear on a rocky outcropping with lichen and an iceberg in the distance, marked “Lith. Printed & Col. by J.T. Bowen, Philad. 1846″ l.r., in excellent condition with minor stain in far left corner, 21 1/8″ x 27 1/8”, (ex. Archibald estate, Powder Point, Duxbury, MA).