DescriptionJackLondonSignature.svg English: Signature of JackLondon. Source Own work, traced in Adobe Illustrator from File:JackLondonsignature.jpg Author
DescriptionJackLondon Autograph.svg Русский: Автограф Джека Лондона с банковского чека 1907 Date 3 October 2015 Source Автограф Джека Лондона с банковского
p. 60 Attributed to Robert Greene by Halkett and Laing, v. 4, p. 121 SIgnatures: A-F́þ Headpieces With a final leaf of advertisements (F4) Boston Public