Vintage U2 Linen Tunic Top Size M Embroidered Firefly Sleeveless 70s Artsy Boho

Good Condition with a small color transfer spot on front (see picture) Blue green multi firefly embroidered, lined, crosshatch linen, sleeveless tunic with round-neck and back button closure. Tagged a Vintage size 14 = today's size M/L ? Bust measures approx 39" around Front is 26" from shoulder to hem 100% Linen / Dry Clean