This is a new production late M-series overseas speedometer. This is the exact one as used on the M-series jeeps and trucks overseas. It is miles and KM’s marked. These are the most common on the very late M38A1, and M151 series jeeps. This will also fit any of the Willys jeeps including the MB, GPW, CJ2A, CJ3A, M38, and early CJ3B. . This is a very high quality item made by a government contractor. These are dated on the back. This fits a 3 1/2″ hole.