The OE hub caps aren't real flattering. Here is a pic of them.
http://mywebpages.comcast.net/pxtx/1965/65ss.jpg
Note the trim in front of the rear wheels. I beleive this is an early picture of an SS before they were actually released. My 65 is a Nov 64 car and does not have them, although I have not taken the paint away to check for holes.