b61-270
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Item no.: 166449631146
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b61-270 TRIANGULAR INCLINOMETER. These gizmos show up occasionally, and are usually marked patent applied for, but we've never been able to find out if they were patented or who made them. They have a triangular cast iron frame, 10" wide and 4-1/4" high, with a curved inclinometer vial in the base and two matching vials in the upright portion, brass plates. The base has two holes drilled in it, so that it can be attached to a board, as this one is. For a cruder, possibly prototype, version of the same level, see lot 269. From the collection of Don Rosebrook. Fine 200-400
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