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Title: Turtle' (1787), submarine by David Bushnell
Caption: Turtle' (1787), submarine by David Bushnell (1742-1824) American inventor. Operator turned handle to work propeller. Air in vessel sufficient for it to remain submerged 30 minutes. During American War of Independence, several unsuccessful attempts made to use 'Turtle', armed with single mine, to blow up British warships. Engraving c1810.
Credit: Album / Universal Images Group / Universal History Archive
Image size: 5746 × 3650 px | 60.0 MB
Print size: 48.6 × 30.9 cm | 2262.2 × 1437.0 in (300 dpi)