Unfinished drawings of examples of columns from Cave No. 1, No. 21 and No. 27, including some comparative notes. Scale is 2 ft. to an inch.

Pencil and ink sketches of various pillars from Caves No. 10, No. 46, No. 45 and No. 56, with some comparative notes and annotations. Scale is 2 ft. to an inch.

Drawings of columns in Caves Nos. 4 & 8, drawn in a scale of 1/2 inch to a foot.

A leaf from a notebook systematically comparing the West's account of the Kanheri Caves to that of Abraham Hyacinthe Anquetil du Perron dating from 1760. The comparison appears to be related to the numbering of the caves, as well as to some inscriptions.

A list entitled "Contents of this Box" detailing the folders within the portfolios.

Copy of notes about the Mahad Caves, originally written by A. West, 22nd May 1853, and copied in July 1868. With the description are drawings on tracing paper of palns caves, pilaster ornaments, pillars, plaster panelling and an inscription.

A copy of an inscription on a detached slab at Rajpuri Cave. The inscription is on tracing paper which has been glued to the backing paper.

Twenty-six items of correspondence plus a further label. The majority of the correspondence is from Thomas Newbold to Richard Clarke. There is a single letter from Newbold to George Thomas Staunton; and a single letter from Richard Wood to Newbold.

Three letters written by Arthur West to Dr. James Burgess. These are:

• Letter, dated 26 February 1906, in which West writes both of his brother, Edward's death in 1905, and that he has all the 'Indian Cave papers' which he is sending to Burgess to use as he needs.
• Letter, dated 1 March 1906, in which West expresses his pleasure that the Cave notes and drawings may be published and puts them at the service of Burgess.
• Letter, dated 14 March 19906, to enclose 'a memo of our Cave experiences in India'.

Between 1995 and 2003 Terence Phelps corresponded with Michael Willis, British Museum, concerning his research. This series contains letters predominantly sent by Phelps to Willis. With many of the letters are enclosures of articles or extracts which accompanied Phelps' correspondence.