China, 1912 (Nov.) registered native envelope to Changsha (22.11) bearing on reverse "Republic of China" overprint by Statistical Department of Customs 1c. ochre blocks of six (2, one block has top row of stamps trimmed from envelope opening) and on front single, cancelled by "Hankow" bilingual segmented c.d.s. with unframed "AR" h.s. and "Hankow/No. 12856" registration h.s. Chan 153.
Estimate HK$ 2,500 - 3,000