7401-298
Status: Open
Item no.: 173084338464
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7401-298 ROE'S patent folding protractor, square, and triangle. Patented by Justus Roe in 1890, unfolds to a 15" x 7" trangle, nickel plating largely worn and oxidized so markings visible but faint. Unusual. Good (NPO335) 50-100
