Mordan gravity pencil. Mechanism works fine. Hallmarks are worn and difficult to read but “S M & Co.” is legible on the barrel as well as “S. Mordan & Co.” and the word “Patent” below the hallmarks. The barrel hallmarks cannot be deciphered. Very good overall condition.
"S. Mordan & Co.", "S M & Co", "Patent", Hallmarked but hard to read