Many years ago I was in the typesetting business. One of the tools that I used was a Pica rule. I ran across this one a couple of years ago and have been using it daily since then. The hook on the end makes for extremely accurate measurements of up to 12”. They make one that is about 18”, but I haven’t been able to track one that long down. You can find them at Precision Graphic Instruments for only $9.50. Great little tool.
-- Bill - "Suit yourself and let the rest be pleased." http://www.cajunpen.com/