Here is McCall’s Pattern #4037 UNCUT Misses Blouse Sleeve Variations Size XS (Extra Small), Small and Medium. Semi-fitted, pullover, bias blouse has elasticized, plunging neckline with attached ties and below elbow or long sleeves. Blouses A, B or C have flounce variations; blouse D has purchased trim; blouse A, wrong side of fabric may show on flounces.
The pattern and instructions is still factory folded. The envelope shows wear and creases from storage.