Vintage Women's White and Blue Trim Embroidered Button Up Blouse Size Large

Blouse brand, material, and sizing tags have been removed. Feels like a soft silk-like material, but I do not know the material of the fabric. 3 spot stains: 2 on the front middle (pointed to in photo) and 1 on the back neck collar (see photo). Measurements: Pit to Pit: 22 inches Long: 27 inches