I'm always looking for specimens/photos/data on small Spanish Colonial cannons, because obviously the more examples you have, the easier it is to draw conclusions about the weapons. Some references containing photos and descriptions of similar cannon include these; I'd be grateful to learn of any additional sources:
a. Rughe, Justin, THE HISTORIC CANNONS OF CALIFORNIA, Quantum Associates, Lompoc, CA 2005
b. Brinckerhoff and Chamberlain, SPANISH MILITARY WEAPONS IN COLONIAL AMERICA 1700-1821, Stackpole, Harrisburg PA 1972
c. THE ROBERT ABELS CATALOGUE OF THE HOWARD K. BROWN CANNON COLLECTION, New York, ca. 1961, pp. 18.
d. McFarland, Earl, CATALOGUE OF THE ORDNANCE MUSEUM, United States Military Academy, West Point, NY, USMA Printing Office, 1929
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