The second part of the sampler-
1.In these samples this stitch is combined with other variations of buttonhole stitches.
First row- with three buttonhole stitches.
Second row-with crossed buttonhole.
Third row-with up and down buttonhole
Fourth row-with half buttonhole wheel
Fifth row-with bullion buttonhole
Sixth row- with knotted buttonhole
Seventh row-with basque stitch
2.Triangular buttonhole stitch is used for couching satin ribbon in the first row. The stitch worked over lace in the last row.
The whole sampler-