lower left: KLINE '40; across top reverse, the artist's initials in monograph within a circle: BAR ROOM PAINTING / 1940 / FK
- Franz Kline: Bar Room Paintings: 1940, The Collector's Gallery, New York, 1961, no. 7, as Horseback Riders.
- Joselow, Evie T. "The Early Work of Franz Kline: The Bleeker Street Tavern Murals, 1940." PART 9 (Spring/Summer 2004; on-line Journal of the Graduate Center, CUNY, Ph.D. Program in Art History).