The letter was an acknowledgment of the photoheliograph received and experiences shared by using equatorial telescope to take solar photographs.

The album includes photographs captured during the installation of the H-alpha telescope at Kodaikanal Observatory in 2014 by an expert team from China. The H-Alpha telescope has a 20 cm doublet objective lens that produces a beam at f/7.9. The telescope creates a full-disk image of the sun using extra optics. The telescope can also be used to magnify a portion of the sun's disc. The album includes all stages of the installation process with the caption and instruments associated with the telescope. Photos of the IIA team with the team who came from China and cultural programme photos are also archived in this album. It was installed during the directorship of P. Sreekumar.

This item is about the importance of the optical telescope and the location chosen for the observatories, such as Kodaikanal and Kavalur. The item also speaks of the importance of these weather conditions for astronomical observations.