I just noticed it does not have the fender-mounted fiber optic lamp monitors - thought those became standard with the 1971 redesign. Guess not.
You are correct, I looked up the 71 Brochure for Deville's and it shows them as optional equipment. It also lists that if they are purchased they include a low washer fluid warning light. Learned some more useless info today! http://dcl16.nl/cf/cf71/cf71opt.htm