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Universal equinoctial ring sun dial, 1710-1729. With case

Universal equinoctial ring sun dial, 1710-1729. With case

1710-1729
Equinoctial sun dial, c. 1694.

Equinoctial sun dial, c. 1694.

1694
Mechanical equinoctial sundial, before 1752

Mechanical equinoctial sundial, before 1752

1701-1752
Model of Ayn Yantra at Jaipur Observatory, 1884-1886

Model of Ayn Yantra at Jaipur Observatory, 1884-1886

1884-1886
model of equatorially mounted circles (Chakra Yantra)

model of equatorially mounted circles (Chakra Yantra)

1884-1886
Pocket watch shaped sundial with built-in compass

Pocket watch shaped sundial with built-in compass

1800-1900
Model of Narivalaya at Jaipur Observatory, 1884-1886

Model of Narivalaya at Jaipur Observatory, 1884-1886

1884-1886
Model of pointer to the North Pole (Druv Nal)

Model of pointer to the North Pole (Druv Nal)

1884-1886
models of Celestial hemispheres (Kapali)

models of Celestial hemispheres (Kapali)

1884-1886
Magnetic Sundial, mid 18th century.

Magnetic Sundial, mid 18th century.

1745-1755
Magnetic sundial

Magnetic sundial

1801-1900
Brass portable sundial with magnetic compass, by L. Casella & Co., London, possibly owned by David Livingstone

Brass portable sundial with magnetic compass

models of altitude and azimuth instrument (Ram Yantra), scale 1:24 (two models each complementary to the other) in the Jaipur Observatory

Model of Ram Yantra at Jaipur Observatory, 1884-1886

1884-1886
Plaster copy of an Egyptian Shadow Clock, without cross-piece, which is missing from the original and a drawing in frame

Plaster copy of an Egyptian shadow clock.

model of sundial, similar to Samrat Yantra, scale 1:24, in the Jaipur Observatory

Model of Samrat Yantra at Jaipur Observatory, 1884-1886

1884-1886
model of Azimuth instrument (Diagamsa Yantra), scale 1: 24, in the Jaipur Observatory

model of Azimuth instrument (Diagamsa Yantra)

1884-1886
One of nineteen photographs taken by the Royal Observatory, Cape of Good Hope, South Africa, showing M. Lacailles' wall sundial in Cape Town.

One of nineteen photographs taken by the Royal Observatory

1909
Models of (a) Celestial hemispheres (Kapali) (b) equatorially mounted circles (Chakra Yantra), scale 1:24, in the Jaipur Observatory

Models of (a) Celestial hemispheres (Kapali) (b) equatorially mounted circles (Chakra Yantra)

1884-1886
model of complementary hemispheres (Jai Prakash), scale 1:24, in the Jaipur Observatory

Model of Jai Prakash at Jaipur Observatory, 1884-1886

1884-1886
model of altitude and azimuth instrument (Ram Yantra) scale 1:24 (one of two models complementary to each other) in the Jaipur Observatory

model of altitude and azimuth instrument in the Jaipur Observatory

1884-1886
model of altitude and azimuth instrument (Ram Yantra), scale 1:24 (one of two models complementary to each other) in the Jaipur Observatory

model of altitude and azimuth instrument (Ram Yantra)

1884-1886