Rockwell Model 18R calculator Designer (Person) Unknown Manufacturer Rockwell International Date 1976
Nobility Model K14/350 calculator Designer (Person) Unknown Manufacturer Nobility Date 1970 - 1979 (circa)
Black calculator with blue and pink buttons Designer (Person) Unknown Manufacturer Unknown Date 1980 - 1989
Jacksons of Piccadilly calculator Designer (Person) Unknown Manufacturer Unknown Manufactured for Jacksons of Piccadilly Date 1980 - 1989 (circa)
Petrous PRMC-1 calculator Designer (Person) Unknown Manufacturer Petrous Electronic Corp Date 1970 - 1999 (circa)
Texas Ti card TI-1784 calculator Designer (Person) Unknown Manufacturer Texas Instruments Date 1980 - 1989 (circa)