Vintage 80's Black & White Patterned Blouse

Vintage 80's black and white patterned long-sleeve blouse with drapey neckline and hook keyhole closure in back. No material tag but feels like polyester. No size tag but seems to fit like a size L. See measurements for fit. Pictured on size 2/4 mannequin unpinned. Measurements lying flat in inches approx: Shoulder to shoulder ~20 (no shoulder seam) Armpit to armpit ~21 (no armpit seam) Waist 19.5 at bottom hem Length 24.5 Sleeve length ~22.5 (no shoulder seam) Small area just below keyhole that appears to be a repaired hole (see last 2 pics). Hard to find. Otherwise in excellent vintage condition without any other notable flaws. No trades. vtg, 1980's, alternative, altgirl, goth, geometric, dotted, business casual, careerwear, corporate goth, retro