Vintage Industrial Adjustable Swivel Drafting Stool

This is a vintage industrial-style drafting or shop stool featuring a height-adjustable swivel mechanism. The stool is constructed with a circular solid wood seat that exhibits a deep, honey-toned patina and visible grain patterns. It is supported by a heavy-duty threaded steel screw post that allows for manual height adjustment. The base is complex, consisting of four outward-curving cast metal arms finished in a dark, possibly weathered black coating, which transition into four tapered wooden legs. These legs are reinforced by cross-stretchers for structural stability. Physically, the item shows significant signs of age and utilitarian use, including scuffing, rounding of the seat edges, and various indentations in the wood. The metal components show surface oxidation and wear consistent with an early-to-mid 20th-century piece (circa 1930s-1950s). There are no immediately visible maker's marks in the photo, but the craftsmanship suggests a high-quality commercial grade manufacture, likely intended for architectural drafting or factory work. The mix of cast iron, steel, and hardwood indicates a durable, professional-grade design characteristic of the American industrial era.