The term "Y.O.M." refers to many states' Year-of-Manufacture law that allows antique cars to be registered with original license plates from the year of the car's manufacture. Each state has different regulations, so please check with your home state for specific requirements. All of the following plates are matched pairs of passenger plates, unless stated otherwise. I have listed the condition of each plate separated by a slash - for example, if a pair is marked as g/vg, it means that one plate is in good condition while the other is in very good condition. Added 12/06/11 - () Added 12/20/11 - ()