6 (2), Also China #'s 112 (4), 113 (3), Tied on front & reverse of a Reg'd commercial cover from Hankow 10 May 1903 to Herborn, Germany. Travelled via Chinese PO & Russian PO Shanghai, Port Arthur, Moscow. Chinese stamps only valid within China therefore Russian issues were used for a Foreign destination. Commercial Reg'd covers such as this are of the utmost rarity. F, minor cover flaws. A write-up on this cover accompanies (Image)