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Addiator Patent Duplex Manual Calculator

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Calculators17 of 67Vintage Burroughs Adding Machine.We have no idea what this is, help!
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    Posted 7 years ago

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    KeithT
    (1 item)

    Addiator Patent Duplex. Black and silver both sides in cardboard flip wallet.
    Telescopic riser on hinge (see picture). No idea of value or year. Inherited from my father who was a draughtsman.

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