This vintage Faber Castell NOVO DUPLEX 2/83 N slide rule is a must-have for collectors and enthusiasts of engineering and science from the 1930s onward. 

This slide rule is a rare find in excellent working condition, and its intricate design and precision make it a valuable addition to any collection. 

The slide rule comes with a protective case to keep it safe and secure, as well as original manual. Don't miss out on the opportunity to own a piece of history with this Faber Castell slide rule.