set of two nearly identical vintage industrial brushed metal laboratory stands with fully adjustable ring clamps

set of two all original and intact early 20th century antique american industrial freestnading adjustable retort stands salvaged from a chicago laboratory at the university of chicago. the two stands with flat cast iron bases were designed and fabricated by the fisher scientific company, chicago, ills. each stand is equipped with three fully adjustable ring clamps. the stand have been brushed down to bare metal and sealed with a clear coat lacquer. priced for the lot.