Advertising poster for Cellon, a popular protective dope for use on fabric found on early aircraft

1939 built, 303 ammunition, 6-cylinder powerplant, advertising media, aircraft dope, beardmore engine, biplane, braced nosewheel, british roundel marking, brown ink, buff paper, built 1914-18, cabane struts, cellon, cellon used by blackburn and other companies, company hq in london, contractors to the air board, crew goggles, crew in tandem, designed by geoffrey de havilland, dope, ephemera, external control linkage shown, f.e stood for farman experimental, fabric-covered wings, four-bladed propeller, initially built at royal aircraft factory, inline engine, machine gun, machine marked c.d, non-poisonous dope, observer in front seat, observer manning lewis gun, open cockpits, poster, poster is printed after may 1916 as mentions air board, poster shows two-seat aircraft, pusher biplane, rfc aircraft, royal aircraft factory at farnborough, shows membership of sbac, society of british aircraft constructors, stylised clouds, tapered struts, the dope of proved efficiency, tricycle undercarriage, two-bay biplane, water-cooled powerplant, windscreen for pilot, wire-braced wing,