From the Knit Rowan website:
Note the elegant crocheted border on this knitted ladies open waistcoat, the member’s exclusive monthly free pattern for May 2014. Designed by Marie Wallin using the beautiful yarn Fine Lace (baby suri alpaca and fine merino wool), this design features a pretty lace pattern and can be worn loose or tied in a knot.

This is a FREE pattern available to members of the KnitRowan website.

Finished width dimensions:
46: 51: 57.5: 62.5: 70.5 cm
18: 20: 22½: 24½: 28 inches

Yarn Information:
A - Porcelaine 928
3, 3, 3, 4, 4 skeins
1311, 1311, 1311, 1748, 1748 yards

B - Cobweb 922
1, 1, 1, 1, 1 skein
437, 437, 437, 437, 437 yards