If I had to guess I would say it was English Paper pieced with a bunch of Y seams, because the tri’s on the ends do not seem to be pieced, and they are sometimes irregular like I see in a grandmother’s garden EPP quilt. You could make 2 templates and just start piecing!! Looks like a fun quilt actually, hmmmm maybe I’ll give it a try too! Looks like the angles are 90 degrees …. I bet someone with EQ could make the pieces for us (hint hint :)) I’ll give it a whirl on paper when I get home …
Rachel