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A transit instrument, used for finding celestial bodies crossing the meridian, within an observatory
ARP23A16_494

A transit instrument, used for finding celestial b...

A transit instrument, used for finding celestial bodies crossing the meridian, within an observatory
ARP23A16_495

A transit instrument, used for finding celestial b...

A meridian circle, used to determine altitude of celestial bodies, and a transit instrument, used for finding the celestial bodies crossing the meridian
ARP23A16_496

A meridian circle, used to determine altitude of c...

Bamberg astronomical transit. In use 1914 - 1960.
ARP17A26_070

Bamberg astronomical transit. In use 1914 - 1960.

Geodetic meridian telescope 1890
ARP17A26_071

Geodetic meridian telescope 1890

Peter Dollond
ARP09A00_106

Peter Dollond