China. (Yunnan Province). 1943. Air Mail envelope written from the 'China Inland Mission, Menghwa, Yunnan' addressed to England bearing SG 636a, $1, olive green (2) and SG 641a, $5 carmine (pair) tied by Menghwa date stamp, endorsed 'To Calcutta/ Thence by Ordinary Mail'. Very fine item from Weishan, Yunnan.