Four Calculators & Lockheed Timer

Top row, left: Lockheed sequence timer
Manufacturer: Lockheed for U.S. Air Force
Original Price: $? - Date: 1966

Top row, right: Monroe LA-5 High-Speed Adding Calculator
Manufacturer: Monroe
Original Price: $? - Date: 1950

Bottom row, left: Britannic calculator No. 2120
Manufacturer: Guy's Calculating Machine
Original Price: $? - Original Date: c.1900

Bottom row, right: Facit NTK calculator
Manufacturer: Facit
Original Price: $? - Original Date: 1951


Photo of calculators


Sorry, but I no longer collect these items
and do not have further information.

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Group Photo (approx. 50k in size) of 45 artifacts

List of artifacts in the 50k Group Photo


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