Hermitage Museum Andrew W. Mellon acquired 21 works of art from the Hermitage and later donated to form a nucleus of the National Gallery of Art in Washington, D.C. (see also Soviet sale of Hermitage paintings). With the German invasion of the Soviet Union in 1941, before the Siege of Leningrad started, two trains with a considerable part of the collections were evacuated to Sverdlovsk. Two bombs and a number of shells hit the museum buildings during the siege. The museum opened an exhibition in November 1944. In October 1945 the evacuated collections were brought back, and in November 1945 the museum
Soviet sale of Hermitage paintings were made in the same period, notably the Codex Siniaticus from the Russian National Library, sold in 1933 to the British Museum (after 1973 British Library) for £100,000 raised by public subscription (worth £ in 2019), and "The Night Café" by Vincent van Gogh. In the 1990s, following the collapse of the Soviet Union, the Parliament of the Russian Federation passed a new law prohibiting the sale of Russian art treasures to foreign countries. For many years the National Gallery was reluctant to lend the paintings it had bought from the Hermitage back to that Museum, for fear that the