This stitch is used for Shadow Work on fine transparent fabric and can be worked on the right side of the fabric as in (A).
A small Back Stitch worked alternately on eanch side of the traced double lines (dotted lines show the formation of the thread at the back).
The color of the thread appears delicately through the fabric (B) shows the stitch worked on the wrong side of the fabric as a closed Herringbone Stitch with no spaces left between the stitches. Both methods achive the same result.
