Preface: Pre-wash, if that's your thing. It is mine. Press if needed and cut out your pattern pieces. Make sure to measure your girl to ensure proper sizing and add seam allowance when tracing. Here are the pattern pieces.
1. Place right sides of ouside tunic front and back together and sew the side seams. Place right sides of inside tunic together and sew the side seams.
2. Press your bias strips and stitch them to the arm opening of both outside and inside tunics
3. Outside tunic: place right sides together, and starting and the mark on the pattern, stitch the back closed.
Inside tunic: place wrong sides together, and starting at the mark on the pattern, stitch the back closed. note: this seems counter intuitive. however by doing it this was you will enclose the raw edges of the opening in a later step.
4. Gather the hemline of the outer tunic and the neckline on the outer tunic. Note: I found that using that basting stitch gathered my fabric the exact amount needed to fit.
5. Sewing the hem: match the right side of the gathered hem to the wrong side of the under tunic and stitch the hemline together.
Sewing the neckline: transfer the markings from the under tunic pattern piece. Match up the edges of the outer tunic to the marks and stitch in place. Remove the basting or gather threads.
6. Press the back openings and stitch them together starting at the neck, down to the seam and back up to the neck.
7. Stitch together your neckline pieces so that you have 2 circles, open at the back center. One will be the facing. So this by matching up the front neckline piece to the back pieces, placing right sides together. Take note in the picture my red markings so youll easily know which side of the back neck pieces to stitch to the front piece.
8. Place one neckband right side together along the right side of the outer tunic. Taking care to match up lines on the front and back of the tunic. Baste into place if desired. Place the neckband facing right sides together with the other neckband piece (the tunic is sandwiched in-between). Pin in place and stitch all layers together starting on the short edge of the neckband around the tunic and ending after sewing the second short end of the neckband. Clip corners and turn neckband right side out. Press and topstitch.
Note that the markings on the neckband match up with the center back opening, the outer edge of the back, the front outside edge and the place where the overtunic ends on the front.
9. Finish the top edge of the neck band with the last strip of bias binding.
10. Add the button and buttonhole to the neckband