Correspondence concerned with conservation of the Society's collections within this time period:
- Correspondence and instructions re cleaning marble using Sepiolite, 2 pieces, typed, dated 22 March 1968.
- Correspondence with British Museum regarding creating stands for sculptures, 8 pieces, handwritten and typed, dated 1 April 1969 - 13 October 1969.
- Correspondence with E. Panetta, V & A Museum concerning the restoration of a teak stool, 5 pieces, typed, dated 12 March 1969 - 15 April 1969.
- Correspondence with the India Office Library concerning the laminating of a manuscript, 1 piece, typed, dated 20 December 1973.
- Correspondence with the Armouries, Tower of London concerning the restoration of a mail shirt, 12 pieces, handwritten and typed, dated 24 September 1975 - 22 August 1983.
- Correspondence concerning the possible conservation of James Wales' painting of Madhu Rao Narayan, the Maratha Peshwa (RAS Head Cat. 01.014), 3 pieces, handwritten and typed, dated 25 August 1982 - 2 September 1982.
- Letter from A.D.H. Bivar to Dennis Duncanson concerning the storage of collections in a basement room, 1 piece, typed, dated 16 June 1983.
- Copy of a letter from Godfrey Goodwin to 'Neale; to express his appreciation for the quality of the conservation of two watercolour paintings, 1 piece, handwritten, dated 10 July 1989.