Nocturnal Dial Key Ring shell Miniature nautical astrolabe

Miniature nautical astrolabe

This reproduction of an early optical device employing the phenomenon of "Retinal Persistence" or Image Retention" is a fine piece for explaining how animated movies work

This is a replica of a Nocturnal and Tide Computer from 1570 signed by Humphrey Cole

and a key chain version

This piece is crafted of a polymer drum with a black metal base

Nocturnal Dial Key Ring shell Miniature nautical astrolabeThis is a replica of a Nocturnal and Tide Computer from 1570 signed by Humphrey Cole. Cole was the first maker of English instruments having learned the craft from Flemish immigrants in the final years of the Tudor dynasty. The original can be found in the British Museum, London. Legend has it that the Nocturnal Astrolabe was invented by Raimund Lill to administer doses of medicine to patients during the night. The Nocturnal is a star clock used to