- FondsJeffreys - Papers and correspondence of Sir Harold Jeffreys
- SeriesF1-F25 - Visits and Conferences
- FileF16-F19 - Visit to Singapore and Japan, May-June 1971
- FileF16 - Menu, guest list etc for private dinner given by the Singapore Prime Minister, 1 May
- FileF17 - Itinerary (on cards) for visit to Japan, May-June
- FileF18 - Press Cutting and letter
- FileF19 - Memorabilia