China 1878-88 Large Dragon Issues 1878 Customs Large Dragons, thin paper printing, 1ca Green (Chan 1; Scott 1), used with Customs Peking NOV 16 78 cds, the earliest known dater on 1ca Large Dragon issue, illustrated in Record of Postmarks on Large Dragon Stamps of Ching Dynasty by David Chou, page 160. Estimate HK$ 400,000-500,000