[vcf-midatlantic] MORE ado about chording keyboards

[Jeffrey Jonas]

William Arthur Stewart Buxton ...
is known for being one of the pioneers in the human–computer interaction field.

    https://www.microsoft.com/buxtoncollection/type.aspx?t=Chord%20Keyboard
chording keyboards from Bill Buxton's collection of unusual computer
interface devices

    https://en.wikipedia.org/wiki/Bill_Buxton
the photo shows Bill Buxton with a Microwriter chord input device

his own web site:
    https://www.billbuxton.com/