1 photograph : albumen print on mount ; mount 26 x 35 cm.
The Bancroft Library
Title from caption on Royal Engineers' copy, as reproduced by John Falconer in Photograph and the ROyal Engineers (The Photographic Collection 2:3, p. 43)
Identified by note on Library of Congress copy: Captain Charles J. Darrah, R.E., seated in tent, and Captain Robert W. Haig, R.A. of the British North American Boundary Commission posed at an astronomical observation tent with theodolite, during the marking of the boundary line between Canada and the United States. Box at right marked "Capt. Darrah, R.E., No. 2"
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