pair of original 19th century salvaged chicago 1880's ornamental cast iron interior residential fireplace mantle keystones with glazed majolica tile insets

two matching 19th century interior residential refinished cast iron keystones salvaged from badly damaged faux marble slate mantels. each refinished cast iron fireplace mantel keystone contains a central opening housing a decorative majolica glazed tile made by the trent tile co., trenton, nj. the keystones were fabricated by c.b. evans & co., cincinnati, oh. priced for the pair. measures 11 x 6 3/4 x 3 inches.