I found this pattern on McCall’s Quilting web site. It is a free pattern that you can copy. http://www.mccallsquilting.com/qb/mccallsquilting/pattern_200/index.html
The pattern is for a 12 1/2 inches block. They offer it in the traditional layout in a quilt. I chose to do an all blue block because blue and white quilts were often made because indigo was die that didn’t fade that easy. Many everyday dresses where made from indigo prints.
I cut my half square triangles according to the pattern from assorted scraps. I would be making 4 1/2 inches square unites for this block. The half squares went together the same way as birds in the are. In fact these little units was easier because you sewed less 2 1/2 inches squares together.
You can see in the above picture how you press the seams.
Sew the smaller half squares to the larger half square.
You will get a 4 1/2 inches square unit.
Square up paying attentions to the quarter inch seam allowance so you don’t sew your points off.
The lay out of the block is based on a nine square block. You do not have many intersections to line up. This is a great block for a scrappy quilt. I didn’t find any history on this block. But the string game was played by children that was brought from England as they settled here.