Uber Rare! O.B. FULLER Patent 1892 Pendulum Level Inclinometer with Original Label


Oscar B. Fuller is most famous for his prized 1887 patent pendulum levels, but due to their rarity, few realize he received a second patent for a pendulum level on February 16, 1892. This exceptionally well preserved and highly gizmotic 19.5 inch example is one of only two I’m aware of (the other resides in the galaxy’s foremost level collection). The graduated aluminum face is marked, “Fuller’s Degree Level” and “Patd. Feb. 16, 1892”. Note this is a rather early time for aluminum to be used in tool manufacture. Retains much of the original label and one end plate is marked “9”. An extremely rare and special inclinometer.

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