AUDUBON, John James (1785-1851) Purple Heron (Plate CCLVI)Ardea RufescensEngraving with etching, aquatint and hand-coloring, ca 1835, on J Whatman paper watermarked 1835, plate 24 1/2 x 36 5/8 in (25 5/8 x 38 in sheet), some overall browning and spotting, a few short tears to upper margin, adhered in top and bottom margins on verso to mat, matted and framedLow p. 121, variant 1