[GreenKeys] tt-448 tty a compact model 28 made by adler electronics>??? e place in seattle

[COURYHOUSE at aol.com]

http://www.ebay.com/itm/401218967319?ul_noapp=true
 
curious...  but what is the ADLER  did they just  make the  case and the 
interface  or were they a second source for teletype!?
 
 
Ed#
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