Ordeman, John T. "Frank W. Benson's etchings, drypoints and lithographs, an illustrated and descriptive catalogue." Hickok-Bockus, 1994, Summit, New Jersey.
Notes (object):
Trial proof (d). The heavy bur on the plumage of the birds is reduced by scraping. The outlines of the leading bird which were partially erased in Trial Proof C are again scraped, and the marks of the tool slanting diagonally from left to right appear on the plate. One impression, on Shogun paper.