File:Russia 1992 No 19 stamp (1st standard issue of Russia. 4th issue. Saint Isaac's Cathedral (architect Auguste de Montferrand), Saint Petersburg) 2.png - Wikimedia Commons
Rarest and most expensive Russian and Soviet stamps list
Russian Stamps, Unused, Russian Postage Stamps, Russia Stamps, Russia Postage Stamps, Stamps, Unused Stamps, Soviet Union Stamps, - Etsy UK
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China stamp 1899 Russian Post Offices SG4 5k purple used
Russia 30 Stamps Old Issues 246
File:Stamps of Russia 2004 No 912-914 (cropped).jpg - Wikimedia Commons
Stamps from Russia, Soviet Union - Freestampcatalogue.com - The free online stampcatalogue with over 500.000 stamps listed.
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