the main building of the Academy of Sciences and the concave portion of the northern warehouse (1795–1797). These buildings enclosed the left and right sides of the tip of the spit, the projected location of the Stock Exchange building. Construction of the Stock Exchange building itself began in 1783, but was suspended in 1787. The project restarted in 1805, overseen by architect Thomas de Thomon, but by 1810 work had again stalled due to the upheavals of the Napoleonic Wars. The architectural ensemble was completed between 1826 and 1832 with the construction of the southern and northern warehouses and customs buildings to the design of the architect Giovanni Luchini. Decorations for the Stock Exchange were designed by Vasily Demut-Malinovsky, while further work was carried out by Marian Peretyatkovich and Fyodor Lidval between 1913 and 1914, including the fitting of a reinforced concrete arch in the main hall of the Exchange. Use as the Central Naval Museum Following the Russian Revolution in 1917, and the establishment of a Communist economic system, the building ceased to function as a stock exchange. In 1939 it was assigned to house the growing collection of the Central Naval Museum, which traced its founding to Peter the Great's creation of his "Model Chamber" in 1709. During the Soviet period the collection received many pieces confiscated from private collections. By 2007, federal authorities were considering moving the naval museum to a new location and to find a new use for the exchange building. Options considered were transferring it to the State Hermitage Museum, or returning it to its former use as a centre for commerce. In 2010 work began on moving the naval museum to a new location in the renovated complex “Kryukov (Marine) barracks”, at Ploshchad Truda in the Admiralteysky District of the city. The old stock exchange building was transferred from federal ownership back to the city of St Petersburg in June 2011, and plans were considered to use it for the trading of oil commodities. These plans were eventually abandoned by October 2013 and the municipal authorities began to consider other uses, including as an exhibition hall, a conference hall, or a concert hall. In December 2013 Governor of St Petersburg Georgy Poltavchenko announced that the exchange will be transferred to the State Hermitage Museum. The Hermitage's director, Mikhail Piotrovsky, declared that the building will be used to house the museum's heraldry collection. The