Black Backed Gulls by tebothibeau | Oct 29, 2019 Black Backed Gulls CR #: 1344 Date: 1950s Medium: Brush and Chinese ink with charcoal on paper Dimensions: 23 x 29 in. Signature: Unsigned Credit Line: Provenance: Estate of the artist to Anne M. & Edgar F. Hubert 1971. Sold by the estate.