The Polygraph was a German-made typewriter which was invented by Paul Riesner. Three models were produced of the typewriter by Polyphon Musik-Werke of Wahren, Leipzig, Germany: a curved-keyboard No.1 and straight-keyboard Nos. 2 & 3. All of the models are quite desirable and I would be very interested in either. (Polygraph Schreibmaschine)

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Have one for sale? Please email me at Antikey.Chop@gmail.com or call +1 860-729-2252

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