I have YOM plates in NY for my '61. NY issued new plates in '60, then issued a small, yellow 61 cover for the lower right corner of the plate. This is how mine is set up to legal in NY. I also managed to find a repro New York plate topper, which finishes off the look quite nicely! Best of luck in getting yours just the way you want it.

Greenman.

"The duty of a patriot is to protect his country from its government." - Thomas Paine