in graphite, below plate mark, lower left: IV; lower right: John Taylor Arms 1929; in ball point pen at lower left of sheet: STANWICK [in another hand]; in graphite, lower right: 323 / D [inverted]
- Fletcher, William Dolan. John Taylor Arms, A Man for All Time: The Artist and His Work. New Haven, CT: The Sign of the Arrow, 1982, p. 144, no. 324.