Los-Nr. 1565

1923, Unissued RSFSR Worker 2 r. imperforate with additional Soviet Union franking, each tied by cds. “LENINGRAD 24 9 25” to envelope to Berlin with reverse arrival “BERLIN 29 9 25”, very fine. An extremely unusual usage most likely overlooked by the postal clerk due to the resemblance of the unissued 2 roubles with the 2 kopeks Definitives, and a scarce RSFSR-Soviet Union mixed franking making up the correct 20 kopek tariff, signed Bühler