1933 Wanyuan (19 Aug) to Shanghai. Airmail registered cover, f.w. Martyrs ovpt. Limited For Use in Szechuan 1/2c x4 + 8c x 8 + SYS 5c on
1933 Wanyuan (19 Aug) to Shanghai. Airmail registered cover, f.w. Martyrs ovpt. Limited For Use in Szechuan 1/2c x4 + 8c x 8 + SYS 5c on reverse, tied by East Szechuan Wanyuan cds. On front with registered mark, RR mark and receipt. Arrived Shanghai.1933.8.19 萬源寄上海。航空掛號封，背貼烈士加蓋限四川貼用半分x4 + 8分x8 + 孫像5分，銷東川萬源日戳。正鈐掛號章及RR章。抵上海。
