Seller: 49heath (1,701) 100%, Location: Industry, Pennsylvania, Ships to: US, Item: 162301962694 This is original to our house which was built in 1932? 1933? ;Is it copper? I always thought the brass was tarnished but now I'm thinking it's copper. The glass shade is clean and undamaged. I'm not cleaning the metal Frame part with shade is 13". Shade is 7" with a bottom diameter of 2 3/4". Chain is 7 1/4" long. Ceiling mount is 1 1/4" and 5" diameter. Sticker inside says "Grolite 27-29 Lewis St Newark NJ" There is an Underwriters approval sticker. I've cleaned this and now it appears to be brass plated copper with the copper showing through in many places. I'm afraid if I use brass cleaner on it, or any metal cleaner, it will remove more of the brass so I just used a mild soap and water.