1 Unmounted mint (UM) â the stamp is unused and appears never to have been mounted. 2  Mint never hinged (MNH) â the same as unmounted mint but with an assertion that the stamp is not a formerly mounted stamp that has been tampered with to remove traces of mounting.
vermilion zone, n the external darkish area of the upper and lower lips, extending from the junction of the lips, with the surrounding facial skin on the exterior to the labial mucosa within the oral cavity.
the junction between the skin aspect of the lip and the vermilion zone. Compare: vermilion zone, vermilion transitional zone. vermilion border. the external pinkish-to-red area of the upper and lower lips. It extends from the junction of the lips with the surrounding facial skin on the exterior to the labial mucosa within the mouth.