They are templates for making the Grandmothers flower garden. This pattern is done by hand and is a great take along project.
It isn't like PP but you do fold the fabric over the template and give it a qiick press to set the shape then you slip stitch the folds in place and remove the template for the next one. I'm sure there are tutorials if you do a search.
They are beautiful quilts! Below is a simple tutorial.
peace
http://www.quiltingboard.com/t-126043-1.htm