Title 1 contains:
- RAF Pilot’s Notes for the Heron C Mk 3, AP 4569C-PN, 1st Edition dated June 1955, with approx 90 pages.
- RAF Crew’s Notes for the Devon C Mk 4, (a manufacturers publication given an AP number), AP 4569D-PN, dated April 1958, with approx 279 pages.
Title 2 contains:
- Manufacturers Pilot’s Notes for the De Havilland Heron, publication H.M.R-1-114, dated December 1951, with approx 119 pages.
- RAF Pilot’s Notes for the Sea Heron C Mk 1, AP 101B-4001-15 (formerly AP 4873A-PN), dated September 1963, with approx 178 pages.