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Nautical antiques/4676-Log Knot Master MK IIA
Nautical antiques/4676-Log Knot Master MK IIA
Nautical antiques/4676-Log Knot Master MK IIA
Nautical antiques/4676-Log Knot Master MK IIA
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Nautical antiques/4676-Log Knot Master MK IIA
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Nautical antiques/4676-Log Knot Master MK IIA
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Nautical antiques/4676-Log Knot Master MK IIA
Nautical antiques/4676-Log Knot Master MK IIA
Nautical antiques/4676-Log Knot Master MK IIA
Nautical antiques/4676-Log Knot Master MK IIA
Nautical antiques/4676-Log Knot Master MK IIA
Nautical antiques/4676-Log Knot Master MK IIA
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Code 4676
EUR 750.00
In stock

EUR 750.00
In stock

used

1437472736Code 4676 Log Knot Master MK IIAThomas Walker Ship Log ship log mod. Knot Master MK IIA, British manufacture of the 1930s, chormium plated metal, brass and bakelite, with accessories and placed in its original box. Box cm 31x16.5x15 - inches 12.2x6.49x5.9.

In the past centuries the attempt to measure the speed of the ships was especially hindered by the lack of tools for the measurement of time of sufficient precision: throwing a piece of wood into the sea from the bow of a ship and measuring the time it took to get at the stern, it was possible to obtain some information on the speed of the ship, but with many errors and inaccuracies. The principle of mechanical patent log was shown to the Royal Society in 1699 by Robert Hooke, but the first model produced for commercial use was patented just in 1802 by Edward Massey, uncle of Thomas Walker, that succeeded him in business.

Thomas Walker patented his first Walker log in 1861, patenting the A1 Harpoon Log two years later. His son, Thomas Ferdinand Walker, patented in 1897 the Cherub log, providing a far more accurate reading. Formally completed in 1912, Thomas Walker & Son LLC installed their headquarters in Oxford Street in Birmingham, and the business was continued by the grandson of Thomas Walker, Thomas Sydney Walker.

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