This is a 1929 ad for the General Motors Car Proving Ground in Milford Michigan! The size of the ad is approximately 6.5x10 inches. The caption for this ad is "No.5. Inside Pictures of the General Motors Proving Ground!" The ad is in great condition! I am sorry that the image came out so poorly. The actual resolution of the ad is very good and clear. This vintage ad would look great framed and displayed! Add it to your collection today!