The section and plan of a blockhouse

Print shows a cross-section and the plan for the ground and upper floors of a blockhouse.

Illus. in: Travels through the interior parts of America : In a series of letters / Thomas Anburey. London : Printed for W. Lane, 1789, v. 1, opp. p. 139.
Published in: The American Revolution in drawings and prints; a checklist of 1765-1790 graphics in the Library of Congress / Compiled by Donald H. Cresswell, with a foreword by Sinclair H. Hitchings. Washington : [For sale by the Supt. of Docs., U.S. Govt. Print. Off.], 1975, no. 921.