Walker's harpoon log with rotator and recording mechanism combined into one

Made:
1861 in Birmingham
patentee:
Thomas Walker
Walker's Harpoon log with rotator and recording mechanism

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Walker's Harpoon log with rotator and recording mechanism
Science Museum Group
© The Board of Trustees of the Science Museum

Walker's Harpoon log with rotator and recording mechanism combined into one, patented by Thomas Walker, Birmingham, Warwickshire, England, and made by Thomas Walker and Son LImited, Birmingham, Warwickshire, England, 1861

Details

Category:
Navigation
Object Number:
1876-821
Materials:
brass (copper, zinc alloy), ceramic (unspecified) and rope
Measurements:
overall: 620 mm 147 mm, 1.42kg
type:
ships' log
credit:
Admiralty Hydrographic Department