Anybody know what the initials SES stand for on this Schoolhouse comforter? My guess is Sex Education School. Very interesting mix of crude and sophisticated. The frame with vertically placed blocks is particularly well designed with color and fabrics deliberately planned. Red outlines each of the black corner blocks; the center 3 blocks of each side have fabrics distinguished from all others in the quilt. Excellent condition with the exception of several missing ties. Circa 1910; measures 62" x 78". Wool with cotton flannel back.