Simplicity pattern 2126, Size 12, Bust 32, has no date on the envelope. “Jr. Misses and Misses one-piece dress. Both views have tucked-front with top-stitched center buttoning band, small collar and set-in sleeves gathered at lower edge. Bodice back features tucks at both sides of center. Full skirt is softly pleated and had opening pleat at center front.” This pattern has been used. I didn’t find a copyright date, but judging from size and style I would guess this pattern was purchased for me in the early 60’s. I do not remember making or wearing this dress. I have included pictures of the cut pieces. The envelope has tears at the top fold.