in graphite, below plate mark, lower left: Trial Proof XVIII II, lower right: John Taylor Arms - 1931, lower right of sheet: CT / in another hand: 784
- Arms, Dorothy Noyes, Marie Probstfield, and May Bradshaw Hayes. Descriptive Catalogue of the Work of John Taylor Arms. Unpublished ms., 1962: 243.
- 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, no. 241.