icons. The official opening of the museum called the Moscow City Gallery of Pavel and Sergei Tretyakov took place on 15 August 1893. The gallery was located in a mansion that the Tretyakov family had purchased in 1851. As the Tretyakov collection of art grew, the residential part of the mansion filled with art and it became necessary to make additions to the mansion in order to store and display the works of art. Additions were made in 1873, 1882, 1885, 1892 and 1902–1904, when there was the famous façade, designed in 1900–1903 by architect V. Bashkirov from the drawings of the artist Viktor Vasnetsov. Construction of the façade was managed by the architect A. M. Kalmykov. In early 1913, the Moscow City Duma elected Igor Grabar as a trustee of the Tretyakov Gallery. On 3 June 1918 the Tretyakov Gallery was declared owned by the Russian Federated Soviet Republic and was named the State Tretyakov Gallery. Igor Grabar was again appointed director of the museum. With Grabar's active participation in the same year, the State Museum Fund was created, which up until 1927 remained one of the most important sources of replenishment of the gallery's collection. In 1926 architect and academician Alexey Shchusev became the director of the gallery. In the following year the gallery acquired the neighboring house on Maly Tolmachevsky Lane (the house was the former home of the merchant Sokolikov). After restructuring in 1928, it housed the gallery's administration, academic departments, library, manuscripts department, and funds and graphics staffs. In 1985–1994, an administrative building was built from the design of architect A. L. Bernstein with two floors and height equal to that of the exposition halls. In 1928 serious renovations were made to the gallery to provide heating and ventilation. In 1929 electricity was installed. In 1929 the Church of St. Nicholas in Tolmachi was closed, and in 1932 the building was given to the gallery and became a storage facility for paintings and sculptures. Later, the church was connected to the exposition halls and a top floor was built which was specially designed for exhibiting a painting by Alexander Andreyevich Ivanov,The Appearance of Christ Before the People (1837–1857). A transition space was built between rooms located on either side of the main staircase. This ensured the continuity of the view of exposure. The gallery began to develop a new concept of accommodating exhibits. In 1936,