Lot 40246 – 1920 (Oct 4) Registered postcard to Zurich, a very rare usage of the last issue during the last month of validity

1920 (Oct 4) Registered postcard to Zurich, franked by 1917 4c on 4k and 10c on 10k (surcharged in cents to use Chinese currency instead of the highly depreciated Russian currency after the 1917 Revolution), both tied by « SHANGHAI POSTE RUSSE » cds (T&S Subtypes 6A), repeated alongside, and arrival at bottom left, a very rare usage of the last issue during the last month of validity (the Russian P.O.’s were closed in Nov 1920).