This stamp sheet was issued by the Russian Post Office in China during the final years of Imperial Russian influence in East Asia. Dated 1917, the stamps are part of the series featuring the imperial double-headed eagle and were overprinted with "35 CENTS" diagonally in black, adapting them for Chinese currency use. Each stamp originally bore a face value of 3 kopeks in vivid carmine red and was printed via typography on gummed paper. The overprint was necessary due to the change in postal systems and currency requirements within Russian foreign post offices during the turbulent pre-revolutionary period. This full sheet consists of 50 mint, never hinged stamps with pristine perforations (comb 14 x 14½) and strong centering. It is catalogued as Michel RU-CH 45, Scott RU-CH 60, Yvert et Tellier RU-CH 46, Stanley Gibbons RU-CH 52, and Unificato RU-CH 46. The design theme centers around the coat of arms of the Russian Empire, symbolizing authority and official presence in foreign lands. The vibrant print and sharp overprint represent the high standard of Russian foreign postal issues in China, particularly as postal operations in China remained stable longer than in Russia itself. These stamps are increasingly scarce in intact sheets, especially in mint condition. Estimate: "$450 – 600"