Tibi pink silk blouse black gold lace flutter sleeves button back no size

Tibi New York light blush pink silk blouse. Short flutter sleeves, near sleeveless. Accented with a black floral eyelash lace finished with a metallic gold sheen. Button down back. No size tag. Believe this is a small or medium. Shown on a size 2-4 mannequin, which it is loose on. Please review measurements. 18.5" pit to pit laid flat 23" length from shoulder to hem Great preowned condition