Sleeveless or with puff sleeves. Lace trimmed self fabric or eyelet ruffles, this back button pinafore is a classic. If you were a girl in the 1940-1950s you had more than one of these in your closet.
Girl's size 8 : breast 26 inches, waist 23 inches, finished back length 29 inches.
The pattern piece for the pocket is missing, but the pocket is outlined on the skirt pattern piece so it shouldn't be difficult to make a pocket if desired. The envelope has some scrunched corners and tiny tears, but is better than most from this era.