Salvaged from a house that was completed in 1879. The opening and closing mechanism functions perfectly. These were used in the walls to allow heat to pass from room to room. The dimensions are 14" tall, 10 1/4" wide and 2" deep with the louvers closed, 3" with them open. The opening size to install in a wall is 12" x 8 1/4".Questions welcome, additional specific pictures on request and all reasonable offers will be considered. The weight of the unit itself is close to 8 pounds. I currently have another identical unit listed that is painted a different color and two of the face plates only. Please check my other listings! The item "Antique Cast Iron Tombstone Scroll Grate Heating Vent 1879 Works" is in sale since Friday, April 12, 2019. This item is in the category "Antiques\Architectural & Garden\Hardware\Heating Grates & Vents". The seller is "11bravo87" and is located in Sparta, Tennessee. This item can be shipped to United States.