Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 451
Fig. 1034. Fig. 1035. mit the construction of the masonry in the open air. To preserve the positionof the air-lock during the whole construction there is an offset in the pipe at29 434 ENGINEERING DRAWING. Q
Mechanical drawing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
