Vintage CALCO Vent Tile with Ship

California Clay Products (CALCO), So. Gate, CA 1923-1932 Grills or ventilation tiles were originally designed for use in the transfer of heat, for stoves or fireplaces. And they were also used for decorative drain covers, in attics or foundations for air flow. A ship is the focus of this ceramic vent tile. Glossy black glazing also covers inner edges. Can be hung or displayed as a decorative item. 6″ x 6” x 1/4″ thick Great condition; signed