On Mon, 8 Sep 2008 10:59:35 -0700 (PDT), with neither quill nor qualm,
"Denis G." quickly quoth:

Larry:
Someone posted some SEMs of hand plane blade
edges on the Wreck (rec.woodworking, Rio Lindaers) half a dozen years
ago. It's probably googlable.

Maybe this is it. They're not SEMs, but lots of info/microscopy
pictures on his work sharpening wood plane irons:

You're right, it wasn't scanning electron microscopy, just computer
microscopy.


Brent Beach’s faqs: http://www3.telus.net/BrentBeach/Sharpen/jig%20faq.html

I remember a lot more pics at various resolutions with various
sharpening media and fixtures. That might not have been it. I recall
it including more details of the microscope and software used, but it
was a long time ago. Multiple Internet decades.

--
Music washes away from the soul the dust of everyday life.
---- --Unknown