S. W. Hall's suspension truss bridge

Boston: No. 4 Cornhill Court, n.d., [ca.late 1860s]. Broadside, approx. 9¾" x 7½", single column text beneath a wood-engraved illustration of a 160' span of the trestle bridge; previous folds, else fine. "This bridge has been extensively introduced by its projector, S. W. Hall, Esq., into various parts of the country, and a test of three or four years, with very heavy travel, shows it to possess a firmness unsurpassed by any wooden bridge in the country. Fine examples are furnished in the aqueduct bridge for the passage of the Pennsylvania Canal across the Alleghany River; in the bridges of the Williamsport and Elmira, Ohio and Pennsylvania, Alleghany Valley, and other railroads of Pennsylvania ... and others in nearly all the Middle and Western states..." AAS only in OCLC. Item #54093

Price: $100.00

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