April 24, 2024
Early Ivory Double Slide Duplex Slide Rule Ca. 1860
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Rarely Found double slide solid ivory 7 inch proof duplex slide rule. Excellent original condition, no cracks, chips or repairs. In original hand tooled rigid leather case. Ca 1850-1860. Signed Loftus 146 Oxford St. London. Length closed 7 1/2". During the next months I will be offering for sale my forty year collection of Scientific, Medical, and Steam items as well as unusual hand tools. Collector and Technical books in these areas will also be offered. All are very good to excellent, no junk. It will be worth your while to bookmark this site. The free listing tool. List your items fast and easy and manage your active items.
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