[GreenKeys] Riddle me this... If a TWX was installed in 1955 would it be a 15 or a 28?

[COURYHOUSE at aol.com]

Riddle me this...  If a TWX was installed in 1955  would it be a  15 or a 
28?
 
the installation would be at a towns main police station  with   city 
contract for a new install.
 
 
many thanks ed sharpe archivist  for SMECC    wwww.smecc.org
 
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