Here is our selection of antique navigation instruments, most of these navigational instruments would have helped sailors to safely navigate the oceans of the world.  Antique mechanical depth sounding machine / depth finder stamped T.Walkers, Patent 1723. Circa 1890  Antique navigators parallel rule. Made from ebony and brass. Length 24 inches.  Antique Excelsior yacht log by Thomas Walker. The Excelsior model (Mk 1) was patented in 1905 and ceased production in 1915.  Antique navigators parallel rule. Made from ebony and brass, has the words Trinity Pilot scratched onto it. Length 17 inches.  Antique ships log. Walker Viking bridge connector SOLD  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 |