Vintage Black Cotton Linen Single Button Long Jacket or jacket dress size 8

Vintage Black Cotton Linen Single Button Long Jacket or jacket dress size 8 No label for material it is my estimate Vintage runs small see measurements below Size 8 Shoulder 15.5” Chest 19” Sleeve 23” Waist 15.5” Length 36.5” Hip 19” Fully lined except arms Two small front pockets Some tear on shoulder pads- see pictures Shows some wear as all linen does , no rips or stains Wear as blazer or dress