Taffrail Log Recorder Patent Model. This high-quality working example of a Taffrail Log was submitted to the Patent Office when John Edward Massey, its British inventor, applied for a patent in 1877. This two-part mechanical log measures a vessel's speed though the water.

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Size: 1940px × 1289px
Photo credit: © SBS Eclectic Images / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: industry, maritime, work