T1-100 11 Texas Instruments calculator Designer (Person) Unknown Manufacturer Texas Instruments Date 1982 (circa)
Alessi STS 01 Dauphine calculator Designer (Person) Sowden, George Manufacturer Alessi Date 1997 (circa)
Casio Electronic Printing Calculator HR-100 Designer (Person) Unknown Manufacturer Casio Date 1980 - 1989 (circa)
Black calculator with blue and pink buttons Designer (Person) Unknown Manufacturer Unknown Date 1980 - 1989