The source of this block pattern is Marti Mitchell, Quilting for People Who Don't Have Time to Quilt! (American School of Needlework Publishing, San Marcos CA, 1988), p. 11. Nadine Edwards owns the 2007 copyrights to the diagram at left and the photos below of sewn examples of the block, which are linked to quilts in which they appear. Some sewn examples may depart slightly from the block pattern.
