The louvers work well, and function properly. The seller is nysalvage and is located in Oneonta, New York. Antique arched top heat grate gothic maltese cross arch 9x12 vtg 32-20b this grate shows wear consistent with age and usage. Overall 13 3/4 x 10 1/8 x 2 1/8. Nice antique gothic cast iron arch top heat grate with a nice decorative pattern.