Not sure if it's a PXN-10LE or not, the description of the 1978 PXN-10LE on this page seems to match my bike.
Here are some pictures, please keep in mind that I am selling the frameset,headset,seatpost,and saddle ONLY.
Features full reynolds 531 tubing, nervex lugs, headset, chromed fork crown, seatpost and saddle. It's extremely light for a steel frame and it's in good shape. I am asking $150 plus shipping.