Pattern symbols:

1. - Cutting line
2. - Stitching line
3. - Grain arrow
4. - Place on fold line
5. - Notches
6. - Circles and squares
7. - Lengthen and shorten line
8. - Fold line
9. - Button and buttonhole placements
10. - Dart placement
11. - Pocket placement
12. - Hemline