ROTARY  D I A L   T E L E P H O N E             AT & T / USA (1955)
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1960s Advertisement of this BlueBELL ...                  Model 500

Henry Dreyfuss (1904-1972), a celebrated  industrial designer, gave
the 302, 500, PRINCESS & TRIMLINE their style - He also designed
JohnDeere tractors, Hoover vacuum cleaners, and streamlined trains.

The LETTERS ON THE DIALER are for  MEMORIZING TELEPHONE NUMBERS ...
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      1             4 = G H I     7 = P R S     0 = Operator
      2 = A B C     5 = J K L     8 = T U V
      3 = D E F     6 = M N O     9 = W X Y
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EXAMPLE:  Dial  A-T-L-A-N-T-I-S  =  28526847  ==>> »ATLANTIS« Hotel

R E M A R K :
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This vintage ROTARY TELEPHONE use "PULSE-DIALING".  To make it work
in your application, YOU MAY NEED A  "PULSE-TO-TONE-CONVERTER"...

      Have a look at an  AUTOMATIC ELECTRIC  RED Version

                    Historical Remarks ...
impressum:
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© C.HAMANN       http://public.BHT-Berlin.de/hamann        09/09/07