4- Vogue 8772 (V8772) trimming the back seam allowance on the armholes
Again, for the armhole sync with the fold on the inside, for the flat felled seam done by hand - seams were stitched right sides together then gently pressed open.
Since I am folding these seams toward center back, I trim just the backside seam allowance to 1/4 inch. This is because I want the other seam allowance to be able to fold over and under it, catching the raw edge of the trimmed seam allowance inside the fold.
4- Vogue 8772 (V8772) trimming the back seam allowance on the armholes
Again, for the armhole sync with the fold on the inside, for the flat felled seam done by hand - seams were stitched right sides together then gently pressed open.
Since I am folding these seams toward center back, I trim just the backside seam allowance to 1/4 inch. This is because I want the other seam allowance to be able to fold over and under it, catching the raw edge of the trimmed seam allowance inside the fold.