Aristo Nr. 970 Duplex Slide Rule.
Plastic.
24 Scales x 25cm
All scales are self documented at right end.
Cursor has 6 hairlines.
Aristo and Faber-Castell were the leading slide rule producers in Germany.
Aristo was previously known as Dennert & Pape. Some Aristo models have their
distributor's name imprinted : Charvos.
Faber-Castell was previously known as A. W. Faber.
Rule and leather/vinyl case are in excellent condition.
Rule is clean and white.
Slide and cursor move smoothly and easily.
Payment is due via PayPal within 2 days from end of auction.
Buyer pays $4.85 shipping to USA address via U.S. Postal Service.