Lot 492: William Edward Trevithick, British 1899-1958- ''Th

William Edward Trevithick, British 1899-1958- ''The Aeroplane - Rolls-Royce Aero Engines for Speed and Reliability''; gouache/collage with white opaque and air brushing on artist's board, initialled and numbered 54, 50x38cm: together with two other works by the same artist- Text capitals for Merlin catalogue for Rolls-Royce (two parts); in gouache and ink on paper, blind stamp, stuck down on artist's board, 54.7x38.1cm, (3) (unframed) (may be subject to Droit de Suite) Provenance: Gifted to the present owner by the artist's widow Bessie Trevithick