Photograph: Air-Conditioning of Room XXIX 
31 Jul-3 Aug 1950
Archive reference number
Roof space above the laylight in Room XXIX . The scheme for installing air-conditioning in six of the most badly war-damaged Gallery rooms was agreed by the Ministry of Works in 1946. The plant was installed in 1947, and Room XXIX  was the first remodelled and air-conditioned room to be opened in August 1950. Photograph: Ministry of Works, Crown Copyright. Neg. G2374/18.
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