The source of this block pattern is Bonnie Leman & Judy Martin, Taking the Math out of Making Patchwork Quilts (Moon Over the Mountain Publishing Company, Wheatridge CO, 1981), p. 26. 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.
