Usage of Imperial stamps in China 1866, 10 kopecks brown/blue on horizontally laid paper, cancelled by crisp part strike of boxed script PEKIN handstamp (Tchilinghirian & Stephens fig. 464). The first postmark used in the Russian P.O. in Peking. A rarity - only a few strikes are known on stamps and pieces. The only complete cover is the famous one ex Fabergé and Dr. Casey (copy of the cover included to the lot) (Image)