I love that this extends to the modern software keyboard where the shift key is now an actual arrow pointing to the metaphoric 'upper case'.https://twitter.com/roaringgirle/status/916714059965390848 …
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Didn't the shift key physically (and visibly) move the platen up, since the upper case letters were higher on the typebar arm?
But this begs the question -- when did the first keyboard use an arrow instead of "shift"?
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