Cape,
I had some trouble getting my plates registered but in the end it was registered, because I did my homework. I had been talking with a clerk from the DMV and built a good rapport with him. We worked together in understanding the state code on antique, classic, custom, and YOM registration of the plates. In the end, he learned something and I got my plates registered.
Photobucket Here are a few more links from your state about the difference plate registration. It seems that you can not restore or fix your plates or it will be denied registration.
Bread
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MASSDOT Passenger Plates Booklet January 2014 ,
App for YOM ,
540 CMR: REGISTRY OF MOTOR VEHICLES / 2.07: Year of Manufacture Registration Plates "The plate must be in
good repair and in original condition. Its letters, numbers and markings must be clearly legible. Any indication that the plate has been repainted or otherwise altered will cause the Registrar to reject use of the plate."