William Butler wrote this letter to the Director of Kodaikanal and Madras Observatories to inform him that the photographic plates were dispatched and there was a new fresh demand for photographic plates.

The letter was written by William Butler, the Director General of Stores to the Director of Kodaikanal and Madras Observatories, Kodaikanal, on the shipping of photographic plates from the Meteorological Department as per the request. The list with the number of materials being delivered is mentioned in the document.