[GreenKeys] Model 14 non-typing reperforator on eBay

[Jim Haynes]

Continuing that, I don't believe there was a product with a Model 20
printer above a perforator, similar to the Model 19.  All the pictures
I have seen show the Model 20 perforator with a cover on it, and the
operator punching blind.  Since the Model 20 printer doesn't do 
proportional spacing it doesn't show what the typeset line is going to
look like.  It's more useful for checking spelling and grammar, and
for estimating the space that an article will occupy in the newspaper.

jhhaynes at earthlink dot net