what is this NCR modem? what did it go to?

Chuck Guzis cclist at sydex.com
Sun Nov 26 16:33:58 CST 2017

On 11/26/2017 02:09 PM, Ed via cctalk wrote:
> does the 71 sate seem early?

Looking at the modem, perhaps a little too early, judging from its size.
 Patent date perhaps?

But 300 baud acoustic coupler modems date into the 1960s.


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