Bidspirit auction | Master Rule Mfg Co Interlox

Master Rule Mfg Co Interlox No 106 Wood Folding Rule - This measuring tool is a Master Rule Mfg Co Interlox No 106 wooden folding extension rule. It is constructed from twelve six-inch sections of yellow-lacquered wood connected by brass-plated steel spring hinges. The rule is graduated in imperial inches with 1/16th-inch increments. Historical markings include patent dates 12-13-10, 7-29-13, 11-2-15, and 12-24-18. It features the N.Y.C. APPR'D X-4 stamp, signifying approval by the New York City Department of Markets, Weights, and Measures. The phrase OUTSIDE MEASURE is present alongside a pointing hand icon. Folded Length: 6.5 inches Total Extended Length: 72 inches.