Vintage 80s Gilmor Size 8 plaid skirt‎

vintage 80s blue black gray and white plaid dry clean only size 8 tag says rn 59455 rn textile lookup was gilmor brand fully lined has beautiful blue lace detail on inside small slit on back pockets I do not know the material because the only tag is the one shown in pictures waist 13.5 length 20 all measurements are approximate