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Utoolmart Brass Straight Ruler Durable Tiny Ruler, Ideal for Notebooks, Planners, Diaries and Measuring Gemstones and Jewelry 1pcs : Amazon.co.uk: Stationery & Office Supplies
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Small ruler (~6 inch) with strange markings. Bought a slide rule on eBay and this small ruler came with it. I can't figure out its purpose. : r/whatisthisthing
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Titanium Alloy Ruler, Portable Mini Ruler, EDC Tool, Portable Small Measuring ruler, cm/INCH, Free titanium ring,Key chain
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Utoolmart Brass Straight Ruler Durable Tiny Ruler, Ideal for Notebooks, Planners, Diaries and Measuring Gemstones and Jewelry 1pcs : Amazon.co.uk: Stationery & Office Supplies
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