Vintage GM Visor Mirror. This is a very interesting mirror. It is 8 inches wide and 4 inches tall. It has "GM" printed in the glass at the top. Along each side are listed maintenance topics: Battery, Change oil, Lubrication, Spark plugs, Tune motor, Mileage. Each has a flat surface where a date or check could be written in. There are no cracks in the mirror. There are some surface scratches. There is glazing around the outer edges of the mirror. The back has two mounting hooks for attaching to a visor.