William Louis Sonntag (American, 1822-1900). Monumental Hudson River School oil on canvas painting titled “Afterglow, Massanutten Mountains,” 1865, depicting a hazy river landscape in the rosy glow of sunset. Signed and dated along the lower left. Inkstamped along the verso with “Theodore Kelley Artist’s Colorman,” a supplier of artist’s supplies. An early label from Chapellier Galleries is affixed along the stretcher. Provenance: Museum Art Exchange Inc., New York and Boston; Chapellier Galleries, New York; The Collection of Mrs. George Arden; Christie’s, New York, December 6, 1991, lot 32; The Collection of an Important Minnesota Institution. Unframed; Height: 36 1/4 in x width: 56 in. Framed; Height: 49 in x width: 68 1/2 in.