Florida license plate errors rarely occur, and when they do, these plates are usually destroyed. Once in a while a collector will find one of these, but not very often.
Click on the pictures to get detailed view.

1975_inverted.JPG (74628 bytes) map_orange_inverted.JPG (54509 bytes)
1972 with inverted numbers FL MAP inverted
This is a Permanent Trailer plate. CITY was stamped instead.