An engraving depicting the testing of the steel for anchorage in a hydraulic press of the Brooklyn Suspension Bridge
Caption:
An engraving depicting the testing of the steel for anchorage in a hydraulic press of the Brooklyn Suspension Bridge. The Brooklyn Suspension Bridge was designed and built by John Augustus Roebling (1806-1869) and his son Washington Augustus Roebling (1837-1926) and opened in 1883. Dated 19th century