You will receive a Simplicity 1960's blouse pattern. This back button blouse pattern is Simplicity 4523, all pattern pieces and directions are present and in excellent, used, condition. This vintage sewing pattern is a size 12 bust 32.The envelope reads "Misses' set of blouses: Blouses have slit openingsa t lower edges of side front seams and back button closings. V. 1 and 2 have round necklines, set-in sleeves and top-stitching detail. V. 1 neckline has notch detail and sleeves are long. V. 2 sleeves are short. V. 3 has a lowered round neckline and is sleeveless."