After the war Estonia as Estonian Soviet Republic remained part of the Soviet Union. In January 1945 Ivangorod was administratively separated from Narva and was housed at the Leningrad Oblast in the Russian Soviet Federative Socialist Republic. In 1954 Ivangorod received city status. The river Narva was the border of the Estonian Soviet Republic. o this was later the border of the again independent Estonia.

The postmarl, reseized 50 %, is something unclear, bur we see the indication НАРВА ЭСТ [NARVA EHST]

In de Soviet period we see on covers bilingual indications:this cover has indications in Estonian and Russian. The letter is from the Executive committee of the City Council of Narva.

Russian Chrismas-card, sent from Ivangorod, not longer part of Narva.

The postmark, resized 50 %. In the postmark we see the indication ИВАНГОРОД ЛЕНИН [IVANGOROD LENIN....], now in Leningrad Oblast, on the righjt bank og the Narva River. There are been disputes about the Estonian-Russian border. Acording the Treaty of Tartu (1920) and Estonia Ivangorod is Estonian and now this Estonian Republic is recovered , but the Russian Federation considers Estonia as a successor of the Estionian SSR with the Narva as border.

The Soviet Union has also issued a stamp with a picture of Narva.

Mi. 1986, issued September 8, 1957, on the occasion of the 100th anniversary of the famous Krenholm Manufacturing Factory on the island Kreenholm (German: Krähnholm) in the river Narva.