What is a “Corrective Slide”?

Dear folks,

A bookmark-size piece of clear plastic with words in Gregg shorthand fell out of a second-hand book of shorthand exercises I was looking at on my shelves.  The caption on the top says “Gregg Shorthand Corrective Slide” but is puzzling to me.  Has anyone ever seen one of these gizmos before, and if so, do you know what purpose they served?  The shorthand is written in red ink against the clear plastic.  There are four words in each row and there are fourteen rows from top to bottom.  Is it a type of “addenda” or way to rectify mistakes on the plates?  Baffling to say the least, but perhaps someone out there may have a better idea than I as to what this can be.  Thanks!  Jim

(by jim for everyone)


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4 comments Add yours
  1. I am delighted with your explanation, Alex, and grateful for your input, Debbi! I'm glad I didn't chuck it into the wastebasket…maybe it's my ticket to early retirement –I could claim it was the treasure you mention, Alex, and auction it off on e-Bay!

  2. Sounds like a treasure.  Congratulations!   I've never seen one, but clear plastic items like these were popular with penmanship systems like Zaner Bloser and Palmer.  You could move them over a student's work and show how far it deviated from the "model", in terms of size, proportions, slant, formation, etc.  I suspect this little Gregg device was intended to be used the same way.   Alex

  3. That's interesting, I had never heard of these. Oh you could make one yourself.  Copy a page onto transparency paper and then you can put it over your own notes to check yourself.  Debbi

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