This is the smaller version called the Norma Technikus 100 made for technical calculations. The slide rule is a complete with instructions in the original sleeve. Everything is fully functioning and in great condition. The diameter of the slide rule is 10,5 cm or 4 1/4 inches. Check the attached video on how to work your vintage man tool: circular slide rule operation instructions!
Norma Technikus 100 circular slide rule case Norma 1970 Germany
€50.00
rare early Rieger Merkuria 190 (before Norma Merkuria) circular slide rule with booklet in case made 1956 in Germany
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Shipping rates NL- 5 euro - EU shipping 15 euro - World shipping 25 euro - 10% discount on orders over 100 euro. Minimal order amount 25 Euro. If this does not work for you please contact me at kevin@vintagemanstuff.com
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