B59-577
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Item no.: 163328392027
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B59-577 GRAVITY INCLINOMETER. Frambes Patent. One of the rarest and most complicated of the gravity inclinometers, patented in 1884 by Richard Frambes of Bakersville, NJ, with a distinctive sliding locking mechanism and beveled vial cover. 24" long, there's a largish chip from the top rail but otherwise very clean, all original and working smoothly. From the collection of Don Rosebrook. Fine 1000-2000
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