62/83N , Novo Duplex , Faber-Castell slide rule -mint-

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Faber Castell 62/83N slide rule - "New in Box" This is the "little brother" of the 2/83N !The only difference is its length- so the description is the description of the 2/83N.Its a very fine art of work !In the future I offer more of this artworks, some collectors can then complete the x/83N family ! The slide rule is "brand new", it has never been used and its in excellent condition. It is a very complex slide rule. The 8 1/3 inch (21cm) long slide rule is delivered with: -original German language manual (English manuals are not longer available) -cardboard -dark green leather etui The slide rule has: 30 scales and 11 cursor lines:Front-scales: T1, T2, K, A, DF, [ CF, B, CIF, CI, C, ] D, DI, S, ST, PBack-scales: LL03, LL02, LL01, LL00, W2 [ W2', CI, L, C, W1', ] W1, LL0, LL1, LL2, LL3 The W1/W2 scales allow the accuracy of a 16-inch-slide-rule !! Fore more details see the photos and: "Scientific American" issue May 2006 "Rise and Fall of the Slide Rule-When Slide Rules Ruled" . The 2/83N (and 62/83N) is described there as one of the "finest and most beautiful slide rule ever made:" What do "New in Box" and "brand-new" mean ? The slide rule offered here was manufactured approximately 30 years ago. At this time, computer age was beginning and the slide rules were quite unsalable. From this moment on, it has been stored read more