Nice antique cast iron arched top heat grate wall register. It is not marked the manufacturer is unknown. It has old chipped white paint with some rust. The louvers function as they should. Has a very decorative floral pattern. Overall very good and usable condition. Please look over the pictures below and ask question when needed. Thanks for your interest. 

Measures approx: 13 7/8"tall X 10"wide, Rough opening would need to be 12" X 8 1/4"