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The photographic slides contain images of the 40-inch telescope control desk, it's construction, reparing of it's dew cap from 1971 to 1984.

The photographic slides contain images of the 15-inch telescope in Kavalur from 1969 to 1971.

These Photographic slides contain compressed photos from Our Universe Book.

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

These photographic slides contains different images of Mcdonald observatory.

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

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

This photographic slide was on the R. A. Building of the Kodaikanal Observatory.

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