Calculator [Monroe 20 calculator]

Monroe Calculating Machine Company, Manufacturer


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Details


Maker and Role
Monroe Calculating Machine Company, Manufacturer
Description
Calculator, Monroe 20, battery or mains DC or AC. Desk type or hand-held machine. Black plastic digital key face with red plastic display panel at the top of the key face. In-built rechargeable battery. Grey plastic case. Black switch on left side for changing power mode from DC to AC. Metal information panel on the base reads - Monroe, A Division of Litton Industries Model 20 DC 72V 18W No.J498621, Made in USA. Reg. US Pay off. Marca Reg. Use appropriate Monroe Battery Chargers only.
Media/Materials
Processed Material/Synthetic/Plastic
Processed Material/Metal
Signature/Marks and Type
MONROE / LITTON / A DIVISION OF LITTON INDUSTRIES / MODEL 20 D.C 7.2V 1.8W / NO J498621 / MADE IN U.S.A. *REG. U.S. PAT. OFF. * MARCAREG / USE APPROPRIATE MONROE / BATTERY CHARGERS ONLY Maker's Plate
MURRAY NORTH Hand-written
Accession No
2003.271
Credit Line
Monroe Calculating Machine Company. Calculator [Monroe 20 calculator], 2003.271. The Museum of Transport and Technology (MOTAT).
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