Heavy Porcelain sign with original Brass Grommets, measures 10" x 3 7/16" McGraw-Edison was an American manufacturer of electrical equipment. It was created in 1957 through a merger of McGraw Electric and Thomas A. Edison, Inc., and was in turn acquired by Cooper Industries in 1985. Today, the McGraw-Edison brand is used on industrial, commercial, and institutional lighting products, and is now owned by the Pennsylvania Transformer Technologies Inc. Company as of being acquired in 1996. If interested call and leave a message or text me at 5 zero three - 3 five 1 - 6 one 2 three. Bob....( I will not respond to E-mails)