upper right verso in graphite by unknown hand: D-12; center verso pasted down: one yellow engraving order (to Metropolitan Art Craft Co. from N.Y. American; dated September 11, 1921) and two pink "Rush" slips, all with graphite notations by unknown hand
Garry Trudeau, New York; gift to NGA, 2016
- McDonnell, Patrick, Karen O'Connell, Georgia Riley de Havenon. Krazy Kat: The Comic Art of George Herriman. New York, 1986, repr.