Vintage E.T. Burrowes &Amp; Co Folding Wood Ruler 1891 Portland Maine
Antique wood folding ruler marked, "E.T. Burrowes & Co. Portland, ME Pat. March 24th, 1891
Fully opened to 48”
As stated in the patent: “The object of the invention is to provide a rule capable of various adjustments, and which, though specially useful in taking of inside measurements. Such a the width and height of the interior of window-frames, will be serviceable for all purposes for which the ordinary rule is useful.”
Copy of patent included
No issues noted
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