British Moulding vacuum jug Designer (Person) Unknown Manufacturer British Moulding Date 1930 - 1939 (circa)
Brown Thermos jug Designer (Person) Unknown Manufacturer Roanoid Manufactured for Thermos Date 1940 - 1949 (circa)
Large Isovac vacuum jug Designer (Person) Unknown Manufacturer Insulators Isovac Date 1950 - 1959 (circa)