Here is our selection of antique navigation instruments, many of which helped sailors to navigate the oceans of the world.  Antique mechanical depth sounding machine / depth finder stamped T.Walkers, Patent 1723. Circa 1890  Antique Excelsior yacht log by Thomas Walker. The Excelsior model (Mk 1) was patented in 1905 and ceased production in1915.  Antique ships log. Walker Viking bridge connector  Harpoon A1 model by Thomas Walker. SOLD  Antique Walker Harpoon depth finder, mechanical depth sounding machine. SOLD  Artificial horizon by Dollond. SOLD  A mounted antique ships log, Walker Cherub model. SOLD |