My favorite slide rule and one of the most advanced and complex set of scales.

• Trivia
  • This is my prefered SR and I have 2 of them. I bought the first one directly from FC and the other I got for free at a fair in 2018. One of them follows me every day in my nerd bag.
  • German manual.
  • Made in German.
• Scales
  • Front
    • Top: T1, T2, K, A, DF
    • Slide: CF, B, CIF, CI, C
    • Bottom: D, DI, S, ST, P
  • Back
    • Top: LL03, LL02, LL01, LL00, W2
    • Slide: W2', CI, L, C, W1'
    • Bottom: W1, LL0, LL1, LL2, LL3