Ca.1935-36 brochure which measures 3-11/16" x 8-1/2" closed and opens to 22-1/4" x 8-1/2".It would be difficult to upgrade this original brochure.I've seen many brochures and time alone takes a toll on the folds and creases and this one appears to have been virtually unused.There is slight color deterioration across the top edge.It is marked "Form No.1398" on the back cover.