secondhand Faber-Castell 1/28 Bivius slide rule used, vintage

Used

Faber-Castell 1/28 Bivius, vintage Logarithmic Slide Rule – Collector's Item

Fully functional (but also collectible!) logarithmic slide rule Faber-Castell 1/28 Bivius, German-made from the 1960s. It features a dual guide system (cursor), clear markings, and a variety of scientific/technical scales. Ideal for calculations or as a collectible item. It is in very good condition, with minor wear from time and use, mainly on the label on the back. It is aimed at collectors, educators, and mathematicians, but also serves as a decorative piece for an office with a vintage style.
I am a private individual. All items come from personal or family collection. I pay great attention to packaging. Orders are shipped within 1-3 days.

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