one of several matching early 20th century interior residential baseboard furnace registers designed and fabricated by the hess warming & ventilating co., tacoma building, chicago, il. the well-maintained grate retains the original highly desirable oxidized copper-plated finish over steel. the baseboard grate contains a single large louver with diminutive handle for opening or closing. the grille contains a simple square grid pattern finished in copper plating. the surround contains a "tiger stripe" finish. multiple pressed steel grates were salvaged from a chicago two-flat undergoing demolition. priced individually. measure 14 3/4 x 12 1/2, and 2 1/2 inches in depth.