An Integral Propeller Company two bladed wooden propeller for a 120ps 6 cylinder Argus engine, German, circa 1915, made by the German subsidiary factory of the French Integrale Co and British Integral Propeller Co Ltd to Luciene Chauvier's patented design under Deutches Reich Patent, varnished laminated wooden construction, with remains of Integral DRP transfers and German Iron Cross transfers on front of each blade, the hub stamped 'INTEGRAL PROPELLER 88681 D245 8189 120PS ARGUS 6 CYL', 245cm diameter, six drilled mounting holes and 7.8cm diameter central hole.