From: Phil Payne 

> | Just a data point, but the Selectric II was available in 1972 and it did
> | have correcting built in. (no proportional font in it though.)
>
> We had some sort of fancy Selectric Displaywriter in the typing lab of
> my high school in 1972.  It did proportional fonts, superscripts,
> margin justification, and other such things.  Its output looked like
> it came from a print shop.

I note the recent comment that no other memo coming out of that office had
those characteristics.

--
  Phil Payne
  http://www.isham-research.com
  +44 7785 302 803
  +49 173 6242039

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