I purchased the booklet at our local Quilt Guild Quilt Show (Rio Grande Valley) and learned to make these. Harder than I thought.
Purchased at the "Second Hand Rose Sale" and paid a quarter....lol
I used scaps to make these, not really intending to make a quilt, just make the block.
When folding and ironing the pleats, the ends must be tucked into the other sides.
used a bread knife to make the pleats straight
Iron on tape to keep pleats in place
Then you sew pleats down.