c. 1950's vintage american medical displayable human heart anatomical model designed and fabricated by the denoyer-geppert co., chicago, il. the brightly colored model is mounted firmly on its original varnished birch wood pedestal base. the highly detailed heart is comprised of molded plastic with original hand-applied numbering. features heart chambers and valves, vessels, etc. the cardiac structures are all intact. salvaged from an old chicago public school.