Broom - vintage cotton swing tunic mini dress

EUC USM - this is a best guess. No size on label and no care label. Mannequin is 36B/C bust with a 26” waist - so a solid US8 or Medium. Red - but not bright red more like a burnt / faded red. Round neck with short wide flared sleeves. A-line tunic with a double dart at centre back for a swing hemline. 2 discreet side pockets. D0604