The original '54 Michigan license plate on my car is 13 5/8" x 6". Standard plates are 12" x 6". Couldn't find a source for an odd size license plate. Bought a set of plastic chrome door edge guards for $4, notched them where I wanted them to bend around the corners of the plate, cut to length, and voila--a chrome license plate frame for my oversized plates. You probably know all this already but I was quite surprised. Really dressed up a raw edge. Hope this helps someone with an odd sized license plate.