Labelled as a 12 but fits more like a modern UK 8 -10
BUST: 18" (laid flat and measured across the front from seam to seam)
WAIST: 18" (laid flat and measured across the front from seam to seam)
HIPS : 19" (laid flat and measured across the front from seam to seam)
LENGTH: 49" (laid flat and measured from the top of the shoulder seam to the hem)
If you are unsure if this garment will fit please compare the measurements with a similar item that fits you well.