ANA petite button up blouse

A.N.A petite button up blouse, with folded 3/4 sleeves, does not say a size besides petite but I’m assuming it’s a small. Approximate measurements are length 28 inches, bust 19 inches, sleeves (rolled) 18.5 inches. Great condition no holes or stains, lightly worn. Very soft material very light, has buttons on sleeves to hold up when folded and the buttons go about halfway down the blouse in the front