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Antique Swisstool Swiss Tool Company Engineering Firm White Cross Flag Pin Badge

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Vintage Siemens German DDR GDR East Germany Engineering Firm Pin Badge

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Six Ways To Figure Radiation Harold Alt Domestic Engineering 1936 Book

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Vintage ASEA Metallurgy Swedish Electrical Industrial Company Sweden Pin Badge

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Vintage Faber-Castell Higgins 4415 Black water proof india ink Open Bottle 1 oz

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Vintage Weda Pump Underwater Drainage Pumps of Sweden Engineering Pin Badge

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Vintage Endress Hauser E&H East Germay DDR Flow Control Engineering Pin Badge

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Vintage Fritsch German Pulverising Chemical Engineering Powders Pin Badge

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Capital Sigma Greek Alphabet Mathematical Summation Math Sign Red Star Pin Badge

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Mechanical Calculator Remington Rand - Model R (Revised)

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Antique Solsapon Grease Oil Remover Gel Chemical Company Hands Logo Pin Badge

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Vintage Berkel Scales and Balances West Germany Pin Badge