Here is McCalls Pattern # 2583 UNCUT Misses Blouse Variations in sizes 10, 12 and 14.
Loose fitting, long sleeve shirt A thru F has collar and front button closure; shirt A has scalloped hemline; shirt B has pocket with drawstring detail; shirt B, D, E, F has side slits; shirt C, D, E, F has trim variations.
The pattern and instructions are still factory folded. The envelope shows some wear and creases from storage.