左右侧有一个椭圆孔. SG colour = "magenta". No U shaped slits. Printed with Iriodin ink, gives a shiny effect to the solid part of the background behind the Queen's head.
Iridescent overprint "ROYAL MAIL". Source code MPIL. Date code M17L. One elliptical hole in each vertical side. Without U shaped slits. Only issued in the Machin Anniversary booklet SG: DY21.