Seller: nysalvage (4,309) 100% , Location: Oneonta, New York, Ships to: US & many other countries, Item: 191986952580 Nice antique cast iron heat grate vent with louvers. It is not marked, the manufacturer is unknown. Nice victorian decorative pattern. Nice original rust patina. The louvers do function as they should. Overall good condition. Please look over the pictures below and ask question when needed. Thanks for your interest. Measures approx: Overall Grill Size - 13 3/4" x 9 3/4Rough Opening or louver box: 12" x 8" Depth: 2"