compact late 1920's american vintage industrial laboratory benchtop retort stand fabricated by the biological supply co., rochester, ny. the refinished chemistry glassware holder contains a weighted three-legged or tripod cast iron base affixed to a solid cast brass rod. the fully adjustable ring clamp with threaded tightening screw is original and intact. components have a brushed metal finish sealed with a clear coat lacquer. measures 11 inches tall.