Fender tag question

1971 Duster info at;

http://www.hamtramck-historical.com/dealerships/1971PlymouthDealershipDataBook-09.shtml

&

http://www.hamtramck-historical.com/dealerships/1971ColorAndTrimPlymouth-05.shtml

& http://www.hamtramck-historical.com/dealerships/1971FleetBook-05e.shtml

There is more there also, but these cover a lot of the basics.