vintage luxury frank fong show coat blazer/pants

gorgeous vintage luxury Frank Fong matching show coat blazer with matching pants. The pants have a flare at the bottom, a slight flare so it makes me think it’s from the 70s. It is gorgeous. It’s almost all of the gray tone with a slight brown and then the blue plaid, almost lapis lazuli color blue plaid, and then the black plaid as well. The silk lining on the inside is a beautiful deep blue and again the matching pants my mannequin is a size medium. It fits her kind of snug so I’d say it’s definitely a size small size 6 or four for the coat and the pants are tiny. I think you’d have to be extra small size 4 pants in the back which is fine the waiast on the pants are just under 14 inches. The coat should be fitted and from armpit to armpit is about 17 inches from shoulder to shoulders about 15 1/2 inches at the waist is about 15 inches really good condition. I don’t see any stains or large holes besides the one that was sewn on the back, see photos and there is slight fray due to age