bigmanjbmopar
Newb with a view
I do not have reverse lights but have seen RR bumpers with them?
back up lights were optional up until 65 if I remember...after that, all cars had to have reverse lights...if yours does not....someone has changed rear bumpers
1967 for mandatory reverse lights. 1968 for side markers.
I did a little checking as I knew that the 1965 A990 cars have a plate in place of the back up lights and assumed it was a delete plate for a standard item.
This link is from the 1965 Dealer Data Book for the standard and optional equipment for Coronet.
http://www.hamtramck-historical.com/images/dealerships/DealershipDataBook/1965/65_Coronet0012.jpg
Now, what I find interesting is that they tout the A990s as having back up light DELETE plates which is actually kind of a play on words since the base Coronet in 65 did NOT get them as a standard item.