Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 485
Fig.1106. Fig. 1107. outside and very smooth inside, but usually without concrete backing, butpacked solidly in earth. Fig. 1106 is a section of an English form of sewercheap and strong. The bricks are laid with close joints inside and an exteriorcoating of cement plaster. This form of construction…
Mechanical drawing
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