Vintage Alcott and Andrews black and white silk hounds-tooth suit size 8

Alcott and Andrews brand, women's skirt suit set. 100% silk. Single button blazer with notched collar, shoulder pads; pencil skirt, banded waist, knee-length, back zip, pockets, slit in back for ease of movement. Black and white hounds-tooth print, reads as light grey from further away. Size 8. GUC, there's a tiny spot as pictured on the right lapel but it makes my eyes cross to look at it that closely! I think there's also a loose bit of thread under one of the arms? Beautiful suit, vintage 80's from my mum.