细节
A late 19th Century brass harpoon ship's log by Walker
the combined impellor with slide to three enamel dials for distance readings up to 100 miles, further inscribed T.WALKERS PATENT HARPOON SHIP LOG A2 LONDON, each vane stamped T.W beneath an anchor -- 19in. (49.5cm.)
the combined impellor with slide to three enamel dials for distance readings up to 100 miles, further inscribed T.WALKERS PATENT HARPOON SHIP LOG A2 LONDON, each vane stamped T.W beneath an anchor -- 19in. (49.5cm.)