DRUM-SHAPED POCKET SUNDIAL Johan Koch fecit 1666 Germany
M&R284
DRUM-SHAPED POCKET SUNDIAL
Signed: Johan Koch fecit 1666
Germany
Drum-shaped gilt brass case, consisting of a lower part containing a compass (to determine north) and a folding needle-shaped gnomon or shadow caster, which indicates the time on a scale with Roman hour numerals. It can be closed by a matching lid. The pocket sundial is signed and dated by the maker on the bottom edge of the chapter ring as follows: Johann Koch fecit 1666.
Diameter: 7 cm.
Literature
J. Abeler, Meister der Uhrmacherkunst, p. 346.