A Walker's "Anchor" ship's No.2 trailing log,
by Thomas Walker & Sons, Birmingham. Brass rotator body, serial no. 2051, with internal recorder, the three enamel dials reading up to 100 miles in 1/10th mile increments. With towing loop, in original wooden carrying case. The log, 18in.(46cm)long. 22.5x6x5.5in.(57x15x14cm).
A Walker's detached recording ship's log,
by Thomas Walker, London. The two-part plated brass body comprising a finned rotator and a submerged recording instrument, the enamel dials reading to 100 miles in increments of 1/4mile. With rope towing loop. 21in.(54cm)long.
A Walker's "Trident" electronic ship's log recorder, with brass rotator, mounted on a wooden plinth. 27in.(69cm)long. (3)