I've learned lots more about the swirl pattern I showed in my February 8th posting. Denniele remembered an old example from the Indiana Quilt Research Project Book, Quilts of Indiana, in which they showed a picture of the one above, possibly made in Connecticut about 1890. "This blue and cream swirl pattern rates as the most unusual pattern among the over 6,400 quilts registered by the IQRP."
The curved swirl looks a lot like the Indiana Puzzle quilt on the cover of the book.
A few people wrote to say they'd made one, either obtaining the pattern in a class or using templates for the design sold by the Ardco template company.
Sally Ickes made the quilt below in a class. She used Japanese-inspired fabrics.
I found the version below at Jane's Fabric Patch where they teach a class.
And see another one made from the Ardco templates by clicking here:
See more about the templates here: