Handmade gingham sheath dress

My mom sewed this for me years ago, I think I wore it once or twice and now it's too small for me. Fully lined with white cotton. Lime green and orange gingham pattern. No slit in the back, darting and seaming in the front to give a nice clean fitted look. Nice cool summer dress. No size tag, pit to pit is 17.5", no stretch, narrowest part of waist seam to seam is 14.5", I believe this would be a size 6, maybe even 4 (I'm an 8 and couldn't pull it over my hips, and couldn't zip it up.