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.

The Papers include correspondence with Wiiliam Claxton Peppé, lists of the finds, some plans of the site, and a draft of an article by Peppé published in the Journal of the Royal Asiatic Society, 1898, pp. 573-588. There is further allied material relating to the originals.