Joie Popover Silk Blend Black White V-Neck 3/4 Sleeve Classic Blouse Size XSa

Joie Popover Silk Blend Black White V-Neck 3/4 Sleeve Classic Blouse Size XS Color: White/Black Good pre-owned condition - *FLAW* There is a mark of discoloration near the bottom hem (see photos). Materials tag has been removed - this feels like it is 100% Silk, however, I am unable to confirm.