This collection consists of seven leather bound portfolios containing topographical drawings, maps, floor plans, notes and papers that the West brothers had created when working in the Maharashtra region of India in the mid to late 1800's. The main focus of the collection is the Kanheri Caves; a group of over 109 rock cut temples located in what is today the Sanjay Gandhi National Park on the western outskirts of Mumbai. The brothers studied these caves over the course of several decades, returning to the site many times to check and amend measurements, locations, and expand open their interpretation of the site. The remainder of the collection covers several other sites such as: Ajanta, Ellora and Daulatabad.

A file containing notes about the Ellora Caves. These are: A copy of the list of Caves, beginning at the south end. Original rough list by E.W. West, January 1865, with a list of the inscriptions he had copied. Notes by A.A. West of his visit, August 1848. Notes from C.W. Malet's description in 1794. Notes from Fergusson's photos, 'Rock cut temples of India, 1864'. Notes from Captain Selby's, 'Wonders of Ellora', 1825. List of photos in the Kensington Museum, September 1868. Unfinished list of sculptures in Kaila's cloister by E.W. West, January 1865. Unfinished plan, Kailas ground plan. Unfinished plan, Kailas 1st floor, main chamber. Unfinished plan Southern Lanka, 1st floor. List of plans and several tracings from Thomas Daniells and James Wales, 1803. Drawing, from a photo, Column in Viswakarma, or chaitya cave. Drawing of a column, locality not noted. Outline of a painting in S. Lanka. Tracings of some sketches of columns. Sketch of a group in a compartment of Das Avatar, August 1848. Sketch if a doorkeeper in Kailas, August 1848. Sketch of a figure in Kailas, August 1848.