Keywords: Herreshoff Duplex Catamaran sailing in the Thames River--1880.png en An old engraving of a Duplex Catamaran built in Rhode Island USA for Mr Henry N Custance honorary treasurer of the Corinthian Yacht Club August 1880 The engraving shows the vessel near her moorings on the River Thames at Erith The catamaran was 33 feet long with a draught of 3 foot and had been recorded making 23 mph with the tide in the Lower Hope Duplex was built in 1877 and was 31 ft LOA 1880-08-07 cite news W H O Duplex Illustrated London News London August 7 1880 http //www boatdesign net/forums/multihulls/historical-multihulls-42019-54 html 2016-01-26 Illustrator W H O of the llustrated London News other versions Custom license marker 2016 01 26 author died 1945 or earlier PD-1923 Duplex ship 1877 |