Step 1
Sandwich the back bodice between the two yokes, sew and press. Top-stitch the seam if required.
Step 2
Roll the whole back body up with the right side on the inside then pin to keep it out of the way.
Step 3
Pin front shoulder to top yoke shoulder seam and sew. Roll fronts up and pin to keep out of the way.
Step 4
Cover the rolled pieces with the under yoke, then to sew the front yoke seams together.
Step 5
Pull through and turn out to the right side. Top-stitch the seam if required. Stay-stitch the two yokes along the neck.