SINGER 1507WC - Manual (Page 63)

GB Practical stitches
56
A B
0
1
2
3
4
Set the machine as illustrated.
Turn the stitch length dial to suit the fabric and application.
For a delicate edge finish along the edge of fabric.
Shell stitch (A)
For decorative edges.
Suitable for edges on sheer, fine and stretch fabrics. The larger
stitch should go just over the edge of the fabric to create the
shell effect.
Crescent stitch (B)