Vintage silk Rafaella blouse M

This vibrant blouse is 100% hand washable silk and is unworn. It has 11 black buttons down the front and buttons on the base of the 3/4 sleeves. Original shoulder pads. 6” slits on sides. Although the shirt is a Rafaella petite, the shirt is marked M. I am quite certain this would fit either an MP or an M. They don’t make luxury silk blouses like this much anymore