De Trey's tooth colour sample Designer (Person) Unknown Manufacturer Amalgamated Dental Co Date 1965 - 1975 (circa)
M.D.Co. tooth colour matching set Designer (Person) Unknown Manufacturer M.D.Co. Date 1940 - 1949 (circa)
240mm Syclix Designer (Person) Wickham, John Designer (Organisation) Random Design Manufacturer Sovrin Plastics Date 2006
170mm Syclix Designer (Person) Wickham, John Designer (Organisation) Random Design Manufacturer Sovrin Plastics Date 2006