Model of an Optical Telegraph for Ships, Engelbert Lucas, 1836 demonstration model Model of an optical telegraph, on pedestal. The pole, made from iron, can represent a mast or flag stuck to which the moving parts are attached. Four square wooden plates are attached to a RA, around which they can turn around. With levers below they can each be put in three positions: upright, horizontal or hanging. Netherlands wood (plant material). brass (alloy). iron (metal)

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Size: 4511px × 5713px
Photo credit: © piemags/rmn / Alamy / Afripics
License: Licensed
Model Released: No

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