60s -Simplicity Pattern No. 4640- Womens side button -Intern- shirt with three-quarter length set-in sleeves, and side front button closing. V1 has stand-up collar, patch pockets, top-stitching detail, which may be of a contrasting color, and sleeves may be rolled up to form cuffs. V2 is collarless and has a patch pocket. Pattern pieces appear to be factory folded.