Anne Sager (American, 1930-2024), Guggenheim Museum Bilbao, Chromogenic Print, apparently unsigned, marked "5" lower right, with artist's estate stamp to verso, unframed. Image: 10" H x 9" W; sheet: 12" H x 12" W. Provenance: From a 35 East 75th Street Estate. Keywords: Photograph, Photography, Prints, Multiples, Architecture, Architectural, Frank O. Gehry,  Building, Polychrome, Geometric, Constructivism, Abstraction, Women Artists, Contemporary Art