Los-Nr. 571

February 1921 Registered letter, private correspondence, from Irkutsk to Petrograd correctly franked on the reverse at 10 roubles provided by a pair revalued 5 kop stamps. That Irkutsk was back under Soviet control at this date is shown by the destination and the use of a very scarce Field Post three triangle censor mark POLEV POCHT KONTORA LIT “C” on the front