I remember ours has 4 pin connector too but not as robust as a ma bell one.. ours comes in a orig box even. I was mixed as to if I wanted to display it with ttys or with sci-tech kids toys and devices display we have in a huge walk in display case. ... it is sitting up in the front office ... I am sure there are photos somewhere on one of the servers...but too tired to chase it tonite. In a message dated 7/2/2016 11:08:44 P.M. US Mountain Standard Time, cclist at sydex.com writes: On 07/02/2016 09:54 PM, couryhouse wrote: Yes, I know--I once owned a model 14 TTY, complete with a pile of mucilage-backed tape for the teleprinter. But it was a beast, not a red plastic thing. --Chuck