Combination pocket sundial and perpetual calendar by Johann Martin

Made:: 1671-1720 in Augsburg

Combination pocket sundial and perpetual calendar by Johann Martin, Augsburg, in case.

Details

Category:: Time Measurement

Object Number:: 1943-20

Materials:: metal

type:: crescent equinoctial sundial and perpetual calendar

credit:: Mr. P. Webster

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Parts

Sundial with various dials and calendar in brass

Materials:: metal (unknown) , brass (copper, zinc alloy) and steel (metal)

Object Number:: 1943-20 Pt1

type:: crescent dials and sundial

Case for Sundial

Materials:: leather and brass (copper, zinc alloy)

Object Number:: 1943-20 Pt2

type:: case

Combination pocket sundial and perpetual calendar by Johann Martin

Details

Parts

Sundial with various dials and calendar in brass

Case for Sundial

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