Duro-Point propelling pencil Designer (Person) Unknown Manufacturer Conway Stewart Date 1920 - 1929 (circa)
Oates Dairies milk token Designer (Person) Unknown Manufacturer Unknown Manufactured for Oates Dairies Date 1950 - 1969 (circa)
Citizen FC-110 calculator Designer (Person) Unknown Manufacturer Citizen Systems Date 1980 - 1989 (circa)
Crayola C-200 calculator Designer (Person) Unknown Manufacturer Advanced Concepts Date 1990 - 1999 (circa)