[TheForge] Question from another list.

[bamablacksmith at comcast.net]

Ive got a friend that runs the precision engineering lab at NIST.. I'll ask and get back with you..

mike


 -------------- Original message ----------------------
From: GRAF <adveniam at att.net>
> Why would a ruler be divided into thirteenths of an inch?
> The gentleman has a metal folding ruler that he got from an armory.
> 
> Mike Graf
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