Labelled a 40, the blouse is free sizing up to a size 44” bust, the skirt measures a 27” waist, so would say it best fits a modern UK size 8-10.
If I’m being very picky there is some minor discolouration to some of the white daisies on the front & the tiniest of pin holes (likely from a brooch) on the shirt, there’s the tiniest mark on the skirt, otherwise in immaculate condition.
