The only one I ever saw was at the Chicago Museum of Science and Industry in 
an exhibit. I would guess they were only used for very specific data entry and 
query applications....

    On Tuesday, August 26, 2025 at 09:21:24 PM EDT, Phil Smith III 
<[email protected]> wrote:  
 
 The 3277-1 was 12x40. How did people use that? Did editors wrap lines, thus 
making it effectively 6x80? I've wondered this for literally decades but 
never remembered to ask!
  

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