These photographic slides contain compressed pictures of the set-up of the astronomical instruments like Hydrometer, wind instrument, etc. at the top of Mt. Nimmu.

These photographic slides contain pictures of sightseeing on the way to Leh from Delhi. It contains survey pictures of the West hill of Mt. Nimmu and the base camp of Mt. Nimmu, the Himalayan ranges, and the set-up on the East hill of Mt. Nimmu.

This fonds consists of photographic slides associated with Ross Laboratory in Secunderabad. One of the images showcases a panoramic view of the Ross Laboratory, while the second image captures the Tableau Memorial dedicated to Ronald Ross.

These Photographic slides contain the observations of the survey from the Mt. Nimmu base.

These photographic slides contain some photographs of Lowell Observatory. It was donated by R.C.Mallik to M. K. Vainu Bappu

These photographic slides contain photos of Bhavnagar 20-inch Dome, Hydrolic gate from spectroheliograph, etc.

These photographic slides contain the pictures of sightseeing of Palras, Greece organised by IAU assembly

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

These photographic slides contain photos of the Kodaikanal solar observatory, North and South domes, solar tower and tunnel, changing of dome and old 15'' dome.

These photographic slides contain photos of North and South domes of Kodaikanal Solar Observatory and buildings