Found this in my closet…
No doubt used it to connect with our DEC PDP 11/70…back in the day. It used thermal paper. Had a speed of 10 or 30 characters per second. I don’t think it was common for me to use this. Most likely connected with my TRS-80 4P and later used Procomm Plus under MS-DOS on some IBM compatible. Perhaps a Gateway 2000.
Someone higher than I (probably John), gave it to me, when the PDP-11 went out the door.