Acrylic Fabric Cutting Templates: La Passacaglia (5 Piece Set) with 3/8in Seam Allowance. Pattern can be found in Willyne Hammerstein's Millefiori Quilts 1 book. (Quilt Mania)
3/8" seam allowance
Millefiori Quilts by Willyne Hammerstein
Millefiori quilts are a type of pattern design popularized by Willyne Hammerstein in her series of books, titled Millefiori Quilts