I found this on ebay and thought it would look nice in a frame (I will most likely clean and scan/shoot it with a high res camera). I find it interesting they describe the beam spring as a "Selectric keyboard" with six models available.
Link- https://imgur.com/a/rK0eM
IBM 3101 brochure from 1979
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digital_matthew
- Location: United States
- Main keyboard: Ellipse Model F62
- Main mouse: It's a Secret.
- Favorite switch: Capacative Buckling Spring
- DT Pro Member: -
Awesome. I'm going to call that 800 number and see if they'll let me do that fifteen day trial. 