The triangles from the Big and Little Points out border from EQ prompted me to look for a block with triangles and found this one in Block Base.
Brockport, N Y
Save 30% on the Encyclopedia of Pieced Quilt Patterns book by pre-ordering!
Expected ship date: December 1, 2020. Your credit card will be charged at time of purchase. Pre-order also includes a 40% discount on BlockBase! Pre-order offer ends November 24, 2020 at midnight, ET. Discounts are applied automatically, no promo code needed. Cannot be combined with any other offers.