R-137-B COLUMBIA TONE ARM for Models A and B

R-137-B COLUMBIA TONE ARM for Models A and B, no lid types. Back of tone arm has been cleaned/machined to fit the back support, as shown in the photos. The back support is not part of this sale, though the back support can be purchased separately if interested (email john@phonographs.org for price). All joints move freely, as they should. A crude, but nearly invisible repair/fill was made below the end of the long arm. See last photo. [Working tone arms like this are hard to find because the backs are fragile. Originally they were made of casted pot metal which always expanded thus requiring careful machining for proper fit.]