Pantochronometer or pocket Sundial/Compass.

The patent Pantochronometer is a pocket Sundial/Compass that can be used to tell the time all over the world, c1865. Pantochronometer pocket Sundial/Compass

Floating Gnomon Pocket Sundial – University of Toronto Scientific

Georgian Pocket Sundial Compass c.1830

English Pocket Compass Sundial, C. 1840

18 Century Equinoctial Pocket Sundial and Compass Ludwig Theodor

Antique Floating Card Sundial Compass Pantochronometer D.L. Smiths

ANTIQUE MAGNETIC SUNDIAL AND POCKET COMPASS AFTER PORTER c1850

Antique Floating Card Sundial Compass Pantochronometer D.L. Smiths

Wolf Bottle, 19th C. - Fleaglass

Georgian Panto chronometer pocket sundial compass

Scientific, Instrument, Compass, Diptych Dial, Portable Sundial

Sundails, Calendar and Compasses - Van Leest Antiques

English Pocket Compass Sundial, C. 1840