Vintage Lorac Originals Size L/XL? Blue Tan Textured Geometric S/S Sheath Dress

Vintage Lorac Originals Size L/XL? Blue Tan Textured Geometric S/S Sheath Dress Good condition, has seam split under the left arm, should be easy fix, if know how to sew, nice blue, tan, white geometric design, short sleeves, back zipper, no material/size label, estimating approximately L/XL, but please see photos and measurements below Dress form in photos is a medium form with a bust of 34.5" Approximate measurements while laying flat Armpit to armpit - 21" Length - 39.5"