Pocket Change'' (the blog of the American Numismatic Society), 8 April 2015. Haddad, John. "A Floating Ethnology: The Strange Voyage of the Chinese Junk Keying" in The Romance of China: Excursions to China in U.S. Culture, 1776-1876, 2008. External links The Waugh painting at the Museum of the City of New York Chinese sea travels (German) Keying medallions in the Royal Museums, Greenwich Keying medallions in the British Museum Keying medallions in the American Numismatic Society Qing dynasty History of Hong Kong Ships of China China–United Kingdom relations 1840s in China