Butterick 4573; ©1923; Junior's and Girls' One Piece Frock with or without Bertha or Puff Sleeve. A Delineator pattern with new Deltor (improved instructions introduced in the early 1920s,). For linen, pique, shantung, silk or cotton broadcloth, pongee, silk crepe, crepe de chine in plain, print or novelty, or cotton or sateen prints, gingham or dimity, with bindings of bias fold to match or harmonize. Size 12 is for breast measure 30, finished length 34in.