Plastics & Rubber Laboratory ashtray Designer (Person) Unknown Manufacturer Unknown Date 1920 - 1952 (circa)
Circular box with floral decoration Designer (Person) Unknown Manufacturer Unknown Date 1920 - 1939 (circa)
Surface mountable guage cover Designer (Person) Unknown Manufacturer Unknown Date 1910 - 1940 (circa)
Bayonet fitting light adaptor Designer (Person) Unknown Manufacturer Unknown Date 1920 - 1959 (circa)