Authentic vintage- purchased at an estate sale peach cotton Peter Pan collared button up blouse. Flattering seams at the front and back for a slimmer silhouette. No size marked but fits like a size medium, 6. Please view measurements below. In good vintage condition- approximate age is late 70s/ 80s, some light discoloration on the cuffs and some light marks on the back, photos included. Measurements (taken flat)- Armpit to armpit- 20” Waist- 16” Length- 20 1/2”