Whipped chain stitch

This stitch is formed of a line of chain stitch with a thread whipped around it. The whipped thread can be the same as the chain stitch thread, or a contrasting one.
Method
1
Work from top to bottom, make a line of chain stitch first.
2
At the end of the chain stitch, make a small straight stitch to anchor the last chain.
3
Introduce a new thread at the top end of the chain stitch. You could use a contrasting colour for a striking effect.
4
Whip the new thread by passing the needle under each chain stitch. Make sure not to pierce the fabric.
5
At the end of the chain stitch, simply take down the needle and secure the thread with a finishing stitch.

Common uses
Embroidery Techniques
References
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Jennifer Campbell, Ann-Marie Bakewell, Guide to Embroidery Stitches (2004) , p.122