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An image showing 'Record Shot - Do not reproduce.'
An image showing 'Mechanical Log - Front'
An image showing 'Mechanical Log - Back'
An image showing 'Record Shot - Do not reproduce.'
An image showing 'Mechanical Log - Front (1 of 10 parts, please see F9129-011 for whole log)'
An image showing 'Mechanical Log - Front (1 of 10 parts, please see F9129-011 for whole log)'
An image showing 'Mechanical Log - Front (1 of 10 parts, please see F9129-011 for whole log)'
An image showing 'Mechanical Log - Front (1 of 10 parts, please see F9129-011 for whole log)'
An image showing 'Mechanical Log - Front (1 of 10 parts, please see F9129-011 for whole log)'
An image showing 'Mechanical Log - Front (1 of 10 parts, please see F9129-011 for whole log)'
An image showing 'Mechanical Log - Front (1 of 10 parts, please see F9129-011 for whole log)'
An image showing 'Mechanical Log - Front (1 of 10 parts, please see F9129-011 for whole log)'
An image showing 'Mechanical Log - Front (1 of 10 parts, please see F9129-011 for whole log)'
An image showing 'Mechanical Log - Front (1 of 10 parts, please see F9129-011 for whole log)'
An image showing 'Mechanical Log - Back (1 of 6 parts, please see F9129-018 for whole log)'
An image showing 'Mechanical Log - Back (1 of 6 parts, please see F9129-018 for whole log)'
An image showing 'Mechanical Log - Back (1 of 6 parts, please see F9129-018 for whole log)'
An image showing 'Mechanical Log - Back (1 of 6 parts, please see F9129-018 for whole log)'
An image showing 'Mechanical Log - Back (1 of 6 parts, please see F9129-018 for whole log)'
An image showing 'Mechanical Log - Back (1 of 6 parts, please see F9129-018 for whole log)'
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Mechanical deck log

Rectangular box with two rollers holding a paper roll. The rollers can be rotated by means of two milled knobs to allow part of the roll to be written on through a rectangular hole. There is also a circular hole cut in the face of the box for a watch or chronometer, with a deviation table alongside the aperture. Box contains a speed, time and distance card.
Length of roll 3730 mm.
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Object Details

ID: NAV0934
Type: Mechanical deck log
Display location: Not on display
Creator: Lee, George, & Son
Vessels: Monarch (1868); Thunderer (1872)
Date made: circa 1900
People: Moorsom, W. R. C.
Credit: National Maritime Museum, Greenwich, London
Measurements: Overall: 41 mm x 183 mm x 102 mm; 41 mm x 183 mm x 102 mm
Parts: Mechanical deck log