Vintage black fluted/ribbed control knob with brass-colored metal backing and splined center shaft socket.

Features a rounded black face, deeply ribbed outer grip, and reinforced internal mounting structure.

Pre-owned vintage condition with visible scratches, discoloration, oxidation, and general age-related wear.

Original manufacturer and equipment application unknown. Material has not been verified as Bakelite.

Sold as pictured. Please compare photographs and measurements to ensure compatibility.