Miniature Nautical Astrolabe - Key Ring Zoetrope Legend has it that the

Legend has it that the Nocturnal Astrolabe was invented by Raimund Lill to administer doses of medicine to patients during the night

Classic office sundial

Wonderfully fashioned a brass with lace-work closure this compass may be worn around the neck or attached pocket piece

But in 1838 Sir Charles Wheatstone addressed the Royal Society in London to present several pairs of line drawings with geometrical form which when viewed by an instrument very similar to this gave the impression of three dimensions

German origin

Miniature Nautical Astrolabe - Key Ring Zoetrope Legend has it that theMiniature nautical astrolabe. Was used for calculating latitude using Suns altitude. Scale reduced. This instrument is a replica of the Nautical Astrolabe of the "Valance", which is placed in the Kensington Museum and belonged to the Army of Philipe II (16th century). The nautical astrolabe is simplified to measure the altitude of the stars for purposes of navigation. Its heavier construction from those used on land was to compensate for the movement