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This item was about the Goldingham working with a Kater's Pendulum hung in front of a haswell clock in the Observatory. The second assistant Thiruvenkatachary, is reading the clock, while the first assistant Srinivasachary, sitting near the 18 ft granite pier, is noting down the reading.

This item was about the map of part of the environs of Madras showing the relative positions of the Observatory house station and the guns. This map was made by J.Goldingham who was F.R.S. in Madras Observatory and the map was published in Madras Observatory papers in 1826 on page no. 177.

This fond was about pendulum clock used at the Madras Observatory manufactured sometimes in 1786. The clock is now in Kodaikanal Solar Observatory and still in working condition.

This fond contains photographic plates of Comet Halley in 1987 viewed from Kavalur using the 90" telescope under various atmospheric conditions

This fond contains photographic plates of Halley's comet in 1986 viewed from Kodaikanal under various atmospheric conditions

The photographic slide contains an image of Rajamohan Irulappan village in Kavalur.

These photographic slides contain the images of Anglo Australian telescope located at the planetarium Armagh North Ireland.

These photographic slides contains drawings of porters, telescopes, and other astronomical instruments.

These photographic slides contains different images of Mcdonald observatory.

These photographic slides contain the images of the spectrometer, and Ondrej telescope related to the Optical Science Department of Royal Observatory, Edinburgh.