Originally Posted by jj1091

I believe it's a 1978 PXN-10/E according to this German catalog. It's the only one that's right for that color, with 531 frameset and graphics. It's the one shown on the bottom left of the attached catalog sheet from Bikeboompeugeot.com.
http://www.bikeboompeugeot.com/Broch...hure%20Pg7.jpg