|This is the English version of the
367 with an inch-scale on the top and a cm-scale on the bottom.
There is no date stamp on this rule, so it is from
before 1920. It does have the wooden pens on the front, so it is older
What makes the 367 really unique is its digit
registering cursor. The indicator is supposed to keep track of the
number of decimal places. This innovation was no success, and
Faber-Castell only used it on the 367.