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An O.B.E. Military, awarded to Major Robert Hobart Mayo 1st January 1919, with the original case, a typed letter of congratulations, signed by Winston Churchill, the 'Grant of the dignity' certificate and two portrait photographs of Major Mayo, each framed with R.F.C. pilot's wings and miniature medal group, comprising O.B.E., 1914-15 Star, British War Medal and Victory Medal with MiD oak leaf, together with a 1914-19 Victory Medal to 'Lieut. W.C. Mayo'. Provenance: from the estate of the late Major Robert Hobart Mayo, O.B.E., M.A. (Cantab), Assoc.M.Inst.C.E., F.R.Ae.S., M.Inst.T.

A 9ct gold presentation vesta, 1918 by Goldsmiths & Silversmiths Co, the front engraved with 'Royal Aero Club Trans-Atlantic Flight 14-15 June 1919 to R.H. Mayo', the reverse engraved with the signatures of J. Alcock, A.W. Brown, H.J. Hawker and K. Mackenzie-Grieve, together with a letter from the R.A.F. Meteorological Station, St John's, N.F. to the Secretary, Royal Aero Club, dated 14th June 1919, within a mount titled 'This letter was handed to ... Major R.H. Mayo ... on the completion of Alcock & Brown's Historic Flight, 15th June 1919', framed with the envelope, a photograph of a Vickers Vimy in flight and a card bearing various signatures, including J. Alcock and Arthur Brown, a luncheon menu for the Trans-Atlantic Air Race 1919, signed by J. Alcock, H.J. Hawker and A.W. Brown, and a quantity of other related paperwork. Provenance: from the estate of the late Major Robert Hobart Mayo, O.B.E., M.A. (Cantab), Assoc.M.Inst.C.E., F.R.Ae.S., M.Inst.T.

An Interim Report on the accident to the Armstrong Whitworth Argosy three-engine biplane airliner 'City of Liverpool' at Dixmude, Belgium, on 28th March 1933, contained within a Ludgate file with blueprint of fuselage giving seating layout and freight compartments, photographs of the wreckage, newspaper cuttings and other paperwork. Provenance: from the estate of the late Major Robert Hobart Mayo, O.B.E., M.A. (Cantab), Assoc.M.Inst.C.E., F.R.Ae.S., M.Inst.T.

A silvered Royal Aeronautical Society circular medal, dated 1939, awarded to 'Major R.H. Mayo, O.B.E., M.A., Assoc.M.Inst.C.E., F.R.Ae.S. for his work leading to an advancement in aeronautical design', within its fitted case, two Kungliga Svenska Aeroklubben (KSAK) 1900-1950 medals, one silvered, one bronzed, and a French bronze A.I.R. award, cast with a central winged figure between a biplane and an airship, the reverse engraved with 'A.I.R. Paris MCMXXVII Major Mayo', in its fitted case. Provenance: from the estate of the late Major Robert Hobart Mayo, O.B.E., M.A. (Cantab), Assoc.M.Inst.C.E., F.R.Ae.S., M.Inst.T.

A Royal Aero Club enamelled, gilded and chromed car badge by J.R. Gaunt, a Royal Aero Club silk scarf, two bronze R.F.C. officer's collar badges, three cap badges, a small quantity of R.F.C. and early R.A.F. buttons, R.A.F. wings, an officer's cap badge, a sleeve eagle etc, and a framed and glazed R.F.C. blazer badge to 'R.H. Mayo O.B.E. Major R.F.C. 1914-1918'. Provenance: from the estate of the late Major Robert Hobart Mayo, O.B.E., M.A. (Cantab), Assoc.M.Inst.C.E., F.R.Ae.S., M.Inst.T.

Anthony R. Cooke - 'The Short-Mayo Composite' (Study of the Seaplane/Flying Boat Combination with Mercury and Maia joined in Flight), late 20th century oil on canvas, signed with initials and dated '80, titled to stretcher verso, 44.5cm x 90cm, within a gilt frame, together with P.L. Rowan - Study of the Short-Mayo Composite in Flight, Mercury and Maia having just separated, 20th century watercolour, signed, 48cm x 37.5cm, within an ebonized frame, a Victory jig-saw puzzle of the Imperial Airways Short-Mayo Composite, a tinted photograph depicting Major R.H. Mayo's daughter Jennifer playing with the jig-saw puzzle, a boxfile containing a quantity of black and white photographs of the Short-Mayo Composite, six flicker books, reports etc. Provenance: from the estate of the late Major Robert Hobart Mayo, O.B.E., M.A. (Cantab), Assoc.M.Inst.C.E., F.R.Ae.S., M.Inst.T.

A small section of original fabric, 4.4cm x 3.7cm, from Kitty Hawk 'Wright Flyer' with printed certification for Robert H. Mayo: 'When Orville Wright, at my suggestion, assembled the Kitty Hawk machine for public exhibition for the first time, in 1916, at the opening the new buildings of M.I.T. in Cambridge, he found that the original fabric could not be used and substituted new fabric of the identical material. When he died, his executors found that he had preserved some of the original coverings of the wings and entrusted several pieces of this most valuable relic to me for distribution to notable aeronautical friends. I certify that this piece was used in the first successful flight in history by Orville Wright on December 17, 1903 at Kitty Hawk, N. C.', signed by Lester D. Gardner, mounted, framed and glazed, together with a small section of silvered doped fabric, 5.5cm x 2cm, with pencil caption to reverse 'From Lindbergh's Spirit of St Louis'. Note: Lester D. Gardner was a publisher of aviation journals and a friend of Orville Wright. Provenance: from the estate of the late Major Robert Hobart Mayo, O.B.E., M.A. (Cantab), Assoc.M.Inst.C.E., F.R.Ae.S., M.Inst.T.

A loose leaf file containing various paperwork relating to Robert H. Mayo, including birth certificate, dated 25th September 1890, passport covering the period 1919 to 1927, pilot's licence for various types of aircraft, issued 17th June 1919, No. 160, Schneider Contest 1931 Ryde Pier official pass, invitation and ticket, further invitations to reunions and an afternoon party at Buckingham Palace Garden, various signed menus, three commissions appointing Robert H. Mayo 2nd Lieutenant, Flying Officer and Major, and various further certificates relating to flying and transport. Provenance: from the estate of the late Major Robert Hobart Mayo, O.B.E., M.A. (Cantab), Assoc.M.Inst.C.E., F.R.Ae.S., M.Inst.T.

A plated circular presentation tray with scalloped edge by Mappin & Webb, engraved with a Fairey Delta 2 aircraft in flight above the inscription 'World Air Speed Record 1132 m.p.h 10th March 1956. R.H. Mayo', diameter 21cm, together with a Fairey Aviation Company Christmas card bearing five signatures, including Fairey Delta 2 pilot Peter Twiss, a silver model of a propeller, engraved 'Aero Golfing Society', a silver presentation ashtray, engraved 'R.H.M from E.M, I.S.R, G.R.S, C.H.J, M.P.R and J.C.H 6.2.38 Quis separavit', and a small silver cigarette case. Provenance: from the estate of the late Major Robert Hobart Mayo, O.B.E., M.A. (Cantab), Assoc.M.Inst.C.E., F.R.Ae.S., M.Inst.T.

A collection of twelve desk diaries, compiled by Robert H. Mayo for the years 1920, 1923, 1924, 1925, 1926, 1929, 1930, 1931, 1932, 1933, 1934 and 1935, together with six pocket notebooks, some part-used, and a reprint of Geoffrey de Havilland's logbook of test flying and design notes, Farnborough March 1911 to August 1912, Crown copyright 1971. Provenance: from the estate of the late Major Robert Hobart Mayo, O.B.E., M.A. (Cantab), Assoc.M.Inst.C.E., F.R.Ae.S., M.Inst.T.

After Geoffrey Watson - 'The Gloster IV, Schneider Trophy Race, 1927', colour print, 30.5cm x 38cm, within an ebonized frame, together with a colour print after Norman Wilkinson, 'The de Havilland Comet "Grosvenor House"', 42.5cm x 50cm, within an ebonized frame, and a colour print after Frank Wootton depicting the Imperial Airways Handley Page HP42E 'Hannibal', 22.5cm x 34cm, within an ebonized frame. Provenance: from the estate of the late Major Robert Hobart Mayo, O.B.E., M.A. (Cantab), Assoc.M.Inst.C.E., F.R.Ae.S., M.Inst.T.