Immediately I looked at the shaper chapter.
Sure enough, it shows the Mark VII 'inverted'.
Right away I noticed a picture pair that Charlese will appreciate.
The caption under the second of the pair of pictures is:
"If it is more convenient with some jobs to feed the work from right to left. To do this, it is only necessary to reverse the motor drive."
I did not know shaper cutters cut when rotated backwards.
Me thinks that was not well thought out.
Now if the cutter is also flipped over it would work.
Chuck has posted his chagrin when he 'thought' he could run a shaper cutter upside down, but soon realized it needed to be reverse rotation also.
This be the inverse of that 'thinking'.
More about the book later(after I have read it).