both the
old and the
new charts
show the facing
lengths in
32nd’s of an
inch. Considering
the extreme
accuracy which
must be used in determining the measurements
of the facing, shows a 32nd
of an inch to be a ridiculous increment
of measure, but I’m sure it has been
used only as a comparative figure.
Companies have been very secretive
about the actual figures, possibly
afraid that another company will copy
their models. However, for accuracy
of comparison, I have converted all
figures to millimeters and the corresponding
thousandths of an inch.