The 27th International Congress of Orientalists was held in Ann Arbor, Michigan, USA, in August 1967. The material concerned with this Congress includes administrative correspondence and organisation for the drinking horn (see RAS ICO/1) to be at the Congress.

Administrative material for the Congress. These are:

• Letter from Edwin Yamauchi, Rutgers University, to Secretary, Royal Asiatic Society, to ask for details of the time and place of the next International Congress of Orientalists and to ask regarding details of the Lidzbarski Medal. Typed, dated 28 November 1965.
• Letter from Secretary, Royal Asiatic Society, to Edwin Yamauchi, Rutgers University, to inform him that the next Congress would be held at the University of Michigan on 13 August 1967 for which the Secretary-General is Professor R.H. Fifield. Particulars for the medal could be obtained from Professor A.J. Arberry. Typed, dated 6 December 1965.
• "XXVII International Congress of Orientalists" invitation and first announcement. Printed, dated January 1966.
• Letter from O.W. Wolters to Richard Winstedt to ask it he would be willing to present a paper at the 27th Congress. Typed, dated 1 June 1966.
• Letter from Secretary, Royal Asiatic Society to O.W. Wolters to inform him of the death of Sir Richard Winstedt. Typed, dated 16 June 1966.
• Letter from Russell H. Fifield, Secretary-General, Organising Committee, to Royal Asiatic Society to invite the Society to be officially represented at the Congress. Typed, dated 7 October 1966.
• Letter from Jean Filliozat, Societé Asiatique, to Norman Brown, President, XXVIIth International Congress, to report on the discussion with his colleagues of the proposals to revise the statutes of the congress. Typed, dated 9 May 1967.
• Letter from Secretary, Royal Asiatic Society, to Secretary-General, XXVIIth International Congress, to inform of the Society's official representatives. Typed, dated 15 June 1967.
• Correspondence between Professor D.C. Twitchett and Royal Asiatic Society regarding him being an official representative of the Society at the Congress. Three letters, typed, dated 15 June - 14 July 1967.
• Letters to John Burton-Page and R.J. Loewe from Secretary, Royal Asiatic Society, to enclose the delegate form for the Congress. Two letters, typed, dated 14 July 1967.
• Delegate certificate for V.L. Ménage from the Royal Asiatic Society for the XXVIIth International Congress. Printed with typed inserts, undated.

Correspondence regarding the attendance of the drinking horn presented by the King of Sweden in 1899 at the Stockholm Congress. These are:

• Letter from the Secretary, Royal Asiatic Society, to The Keeper, Department of Conservation, Victoria & Albert Museum, to ask his advice regarding repairs to the drinking horn. Typed, dated 13 March 1967.
• Letter from N.S. Brommelle, Keeper, Department of Conservation, Victoria & Albert Museum, to Secretary, Royal Asiatic Society, to ask to see the drinking horn in order to advise regarding repairs. Typed with handwritten annotations, dated 17 March 1967.
• Letter from the Secretary, Royal Asiatic Society, to Mr Beecher, Department of Conservation, Victoria & Albert Museum, to ask for the repairs to be undertaken. Typed, dated 18 May 1967.
• Letter from the Secretary, Royal Asiatic Society, to Mr Beecher, Department of Conservation, Victoria & Albert Museum, to send the receipt for the repairs undertaken. Typed, dated 6 June 1967.
• Letter from Secretary, Royal Asiatic Society, to Phoenix Assurance Co. Ltd. to ask for cover for the drinking horn during its time in Ann Arbor in the custody of Mr. H.L. Shorto. Typed, dated 18 July 1967.
• Letter from Phoenix Assurance Co. Ltd. to Secretary, Royal Asiatic Society, to enclose the Policy for cover of the drinking horn. Typed, dated 27 July 1967. The policy is with this letter.