Computer, Olivetti Programma 101

Olivetti Programma 101 Computer. The Olivetti Programma 101 was used for survey calculation by only...

Calculator, Pocket, HP31E

Hand held calculator Hewlett Packard Model 31E, S/N 1843S33243.

Calculator, Pocket, HP21

Hand held calculator Hewlett Packard Model 21 S/N 1607S19611.

Calculator, Pocket, HP35

The HP-35, Hewlett Packard’s first pocket calculator, was introduced in 1972.

Computer, Pocket, Monroe 324G

Computer, Monroe 324G, s/n 5313747, approximately 23 cm (l) X 14 cm (w) X 7...

Computer, Pocket, Monroe 324

Calculator, Monroe 324 (s/n 5312849), charger pack and adapter with cables, three instruction books, all...

Computer, Pocket HP41CX

Hand held computer Hewlett Packard Model 41CX S/N 2851S22388.

Computer, Pocket HP25

The HP-25 was introduced in 1975. It was called a calculator by Hewlett Packard, however,...

Computer, Pocket HP33E

The HP-33E and HP-33C were the basic scientific programmable members of the 30 series. The...

Calculator, Lightning

Made by The Lighting Calculator Co. and produced from 1922 to WW2 in Grand Rapids...