Pixie market puffed sleeves blouse sz S

In good preowned condition. Nice puffed 3/4 sleeves with wide buttoned cuffs and side slits. White with black polka dots. Made of polyester. Size tag missing. I figured size "S" through measurements: armpit to armpit 18", front "V" point to bottom of blouse 19 1/2". Compare your measurements before purchase. From a smoke free and cat/dog friendly home. (11)