Altar Lace in Filet Crochet Pattern #790

Materials suggested: American Thread Company "Silkine" or "Star" 6 Cord Mercerized Crochet Cotton size 50 to 100.
1—175 yd. Ball size 50 will make 10 inches of lace which is 9½ inches wide.

Beginning work at A, ch 158 for 51 meshes, work 1st d c in 8th ch from hook and continue working back and forth according to diagram. Repeat pattern for length desired and work corner. Then begin second side working into side of meshes. When completed work a row of s c all around both edges.
To decrease. At the beginning of a row, sl st to next mesh; at the end of the row omit the last mesh.
To increase. At the beginning of row, ch 8, d c into first d c; at end of row, ch 2, d tr c in same space with last d c.