Coats of Arms of the Constituent Entities and Cities of the Russian Federation. Yamalo-Nenets Autonomous Okrug and Novosibirsk Oblast
2018 May 29, two souvenir sheets dedicated to Novosibirsk Oblast and Yamalo-Nenets Autonomous Okrug are to be put into circulation as part of the Coats of Arms of the Constituent Entities and Cities of the Russian Federation series