Miniature Nautical Astrolabe - Key Ring Zoetrope Wonderfully fashioned a brass with

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

Vertical cylindric sundial (also called shepherd or traveler´s dial)

German origin

Classic office sundial

Miniature Nautical Astrolabe - Key Ring Zoetrope Wonderfully fashioned a brass withMiniature 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