This is a Rochester Gauges dial with an aluminum bezel, part number 5002s00062. It has the markings, "Dial No 5-62" on the face of the dial.
NOTICE: The manufacturer of part number 5002S00062 has stated that this dial has been discontinued and replaced with a version that has a plastic back vs the aluminum back and bezel on this piece. When our stock has been sold we do not believe we will be able to purchase any more. If you have a vintage boat, tractor or anything else that you would like to restore using original parts please be advised that this may be your last opportunity.