Vintage 80s Bill Blass Pleated Jeans 10 Light Blue

Bill Blass pleated peg leg Jean's from the 80s. Size 10 - waist 28, inseam 29", rise 13" 2 pleats on both sides of front Light blue wash 100% cotton See pic 6, 7, and 8 please. There is a stain on the bum area. It is a faint straight line. Picture 8 shows the button. I think that it is not original. Smoke free home Inv 519