Polo mint calculator Designer (Person) Unknown Manufacturer Marlow Manufactured for Nestle Date 1990 - 1999 (circa)
Polo shaped calculator Designer (Person) Unknown Manufacturer Marlow Manufactured for Nestle Date 1990 - 1999 (circa)
Texas Ti card TI-1784 calculator Designer (Person) Unknown Manufacturer Texas Instruments Date 1980 - 1989 (circa)
Imperial Royal digital 5-T calculator Designer (Person) Unknown Manufacturer Unknown Manufactured for Imperial Computer Company Date 1970 - 1975 (circa)