This is a vintage machinist's wing divider manufactured by The L.S. Starrett Co. What makes this No. 92 model unique is the adjustable auxiliary leg, which currently holds a ball point attachment. This specialized feature is designed for locating and rotating the divider smoothly from the center of an existing hole without slipping.

​Key Details & Features:

​Manufacturer: The L.S. Starrett Co., Athol, Mass. U.S.A. (clearly stamped on the primary leg).

​Model: No. 92

​Components: Features a fine-adjustment screw on the curved wing, original knurled locking nuts, and a secondary adjustable clamp holding the ball point center leg.

​Condition: Solid vintage working condition with an authentic shop patina. The steel shows some typical age-related surface spotting and minor oxidation (particularly on the tip of the wing), but the tool remains structurally sound. All fine adjustment threads move smoothly, and the clamping mechanisms lock down securely.