Joe R. wrote:
Does anyone have any idea what this is?
what julian says is correct. However there is a unit for allowing
you to mount a pack and remove it's cover and spin it that is missing.
since this is for 14" platters, the unit should be about 16 to 20 " on
two sides, and about 12" high. The one I saw looked like a large
typewriter case with a carrying handle, and had a lot of material
for cleaning and probing in various compartments as well. There
was also a lighting source, that would allow you to light up the
surface for viewing. Also a viewing microscope was available to
do close up inspections.
Jim