Hey, Maybe this will be of some help, or not..... Washington Blue Wash.Med.Blue 10oz. 246-0091 White 20oz. 246-050 Dark Blue (Chinese) 1 5/8 oz. 246-071 Medium Light Green S****ey Devils C.C.
Check out this website. http://www.ppgcarpaint.com/paints-bymake.php?Year=1957&AutoMakerId=44&ModelId=44 I'm not sure what years those colors would have been used, but this website seems to be fairly complete for the past 50 years..