I've attached a couple of pictures showing the top options for 68's. This is out of the dealer book so it's most likely the best living reference for 68's since it hasn't been out in the sun for 50+ years. The top in your picture is much lighter than anything I've seen for 68's. However, I'm far from an expert on 68's and know very little about 67s. Usually Craig who said white and black are the only options for 67's is right now on the money with these birds. If you post a picture of your trim tag, that may help us figure this one out. The trim tags on 68's will show a letter for the color, have a dash and the a number for the top color. In 68 the teal top is - 5.