A scale model AVRO 504 with fabric covered wooden airframe, moveable primary flying control surfaces, landing and flying wires, detailed rubber tyred main under carriage with centre skid, tail skid, pilot in rear cockpit, blanking cover to front cockpit, dummy rotary engine and two bladed wooden propeller, finished in yellow and black without markings save for a Union Jack and the serial 172 on both sides of the rudder and an AVRO logo on both sides of the fuselage behind the engine cowling, wingspan -- 72in. (183cm.)