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Walker & Son Knotmaster Ship´s Log, First half 20th century


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Walkers Knotmaster Log Mark IIIA, Model K.D.O – Thomas Walker & Son Ltd – England. Made by Thos. Walker & Son, Ltd, 58, Oxford Street, Birmingham, B5 5NX. This is a time-honoured device for measuring distance travelled in knots. You tow one of the impellers behind the meter, which clamps onto the stern of the boat; as the impeller turns, it turns the meter (via its towing line) which clocks up the miles. The dials are (left, right, and main) tenths, units, and tens of nautical miles, up to 100 miles (presumably the navigator will remember to check it at least that often. or be thrown overboard).

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Weight 3500 g

Ship´s Log

Country of Origin:

Manufacturer / Brand

Walker & Son

Estimated Period:

First half 20th century


Great condition, bearly used with minimal signs of aging and wear. Comes with it´s original box.


Glass, Lead, Plastic, Wood


Box – 14.50 cm x 16.50 cm x 31 cm

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