Architectural drawing for a wooden truss bridge. Bridge plan and elevation

Preliminary drawing showing bridge as plan and elevation; engineering drawing.
UNIT title devised.
Date based on truss type and date of Bulfinch's last known work.
Drawing not signed; attribution based on drawing style.
Verso obscured by lining.
Forms part of Charles Bulfinch Archive (Library of Congress).
Permanent deposit; Massachusetts Institute of Technology; 1935; (DLC/PP-1935:069?).
Finding aid (unpublished): Filed by UNIT number, available in Prints and Photographs Reading Room.