Here is Butterick Pattern # 3198 UNCUT Misses Blouse Collar Variations in sizes 20, 22 and 24. Oversized shirt has dropped shoulders, yoke with forward shoulder seams, mock front bands, back pleats, shaped hemline and long, two-piece sleeves with pleats and button cuffs. Narrow hem.
The pattern and instructions are still factory folded. The envelope shows some wear and creases from age and storage.