Vintage IBM Hexadecimal Adder (Field Engineering Division) from the late 1960s For Sale
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Vintage IBM Hexadecimal Adder (Field Engineering Division) from the late 1960s
Price: US $200.00
The IBM Hexadecimal Adder Calculator was used in the Field Engineering Division of IBM. Measures 9 1/4 x 3 inches. A manual calculator for hexadecimal numbers ( numbers in base 16 ).Manufactured by Sterling Plastics Mountainside, New Jersey. Invented by IBM engineer Carl J. Lombardi who filed for a patent on 4/30/54 and granted 6/25/57. Dials turn using a stylus stored in the bottom right corner of the device. No cracks or repairs. Vintage original created 60 years ago.Own a piece of real calculator history.
