Seller: nysalvage (4,854) 100%, Location: Oneonta, New York, Ships to: US & many other countries, Item: 192633386628 Nice large antique cast iron heat grate floor vent register with louvers. It is not marked, the manufacturer is unknown. Nice decorative honeycomb pattern. it was originally nickel plated but that is nearly all worn and chipped away. It does have surface rust. 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 - 22 1/4" x 16 1/4"Rough opening- 20 x 14 1/8"