Very Rare Faber Castell Mathema 2/84N Universal Slide Rule. Very good used condition. Photos are part of description. Please take a look at them in order to have a better and complete idea of condition. Please check out my other items. Thank you for looking! The item “Very Rare Faber Castell Mathema 2/84N Universal Slide Rule Instructions & Case” is in sale since Monday, June 10, 2019. This item is in the category “Collectibles\Science & Medicine (1930-Now)\Engineering\Slide Rules”. The seller is “godmammon” and is located in European Union. This item can be shipped worldwide.

• Country/Region of Manufacture: Germany
• model: Mathema 2/84N , 2 x 84 N