Plunger Propulsion Patent Model. This patent model accompanied Jacob Eckhardt’s application for a new method in the propulsion of vessels that received patent number 179,407 on July 4, 1876. The model comprises a black-painted hull enclosing an internal mechanism of rods and gears. 2006-9746

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Size: 3360px × 2232px
Photo credit: © SBS Eclectic Images / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: industry, maritime, work