Rare 1964 letter Hawker Siddeley Aeronautics, Regarding A New Invention For Sale

Rare 1964 letter Hawker Siddeley Aeronautics, Regarding A New Invention
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Rare 1964 letter Hawker Siddeley Aeronautics, Regarding A New Invention:
$19.90

Rare 1948 letter Aeronautics, Regarding A New Invention.


Sent to the telesan company who were a small company who invented a telephonic system

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