China. (French Indo-China). 1934. Air Mail envelope addressed to Tonkin bearing France Yvert 286, 1f orange (pair) and Yvert 288, 1f50 blue tied by Paris date stamp, underpaid with 'T' hand-stamp and bearing French Indo-China postage dues SG D147, 40c orange and SG D170, 20c pink tied by Hanoi/Tonkin receiver on front. Nice combination.