C.S. OSBORNE & CO.
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ESTABLISHED 1826 |
Aluminum Straight Edge Ruler
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One edge for standard measurements, one edge for metric. Sturdy 1/8" thick by 1 1/2" wide. Easy-to-read scales etched in black on silver background, one side only. Finished anodized for permanence. Hole punched on one end for storage. |
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