Author Archives: admin
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 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...
Calculator, Brunsviga
Brunsviga-Rechenmachine Dopple 132 Manufactored in Brunsviga Maschinenwerte A.G. Braunschweig
Theodolite, Cooke, Troughton & Simms: s/n VO 36315
s/n V012065 Theodolite with carrying case: COOK, TROUGHTON & SIMMS, LTD. YORK. ENGLAND. V012065 A...
Computers, Pocket
In the early 1970s, “handheld” or “pocket” calculators and computers were introduced. They were small...
Computers, Desk
In the early 1970s the introduction of competing products such as the Hewlett-Packard 9100 ended...
Compasses
A compass is, in navigation or surveying, the primary device for direction-finding on the surface...