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Henry Kater's telescope mb-height 2956 with a second flat

SKU 92440312326
4.3
Henry Kater's telescope mb-height 2956 with a second flat
Henry Kater's telescope mb-height 2956 with a second flat
Henry Kater's telescope mb-height 2956 with a second flat
Henry Kater's telescope mb-height 2956 with a second flat
Description

with a second flat

Equestrian Portrait of Philip IV of Spain

Two views of the tower of St Antholin

Inscribed below 'A

Henry Kater's telescope mb-height 2956 with a second flatTelescope used by Henry Kater for pendulum observations. Geodesist and metrologist Henry Kater (1777 1835) invented Kater's pendulum in 1817 which enabled the strength of gravity to be determined. This sight was used to view the pendulum during observations in order to avoid parallax error. ca. 1820

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