SHANGHAI: 1917 Cover registered to Sweden, franked on the reverse with ordinary Russian 10k pair tied by Shanghai 20.3.17 cds (T&S type 8A), opened and resealed by censor at Petrograd, obverse with reg’d label in Cyrillic and English, fine and scarce. Note: Ordinary Russian stamps were not available at the Russian P.O. at Shanghai, although they were accepted when supplied by the customer.