 OSA published a magazine, "SA" or Contemporary Architecture from 1926 to 1930.The leading rationalist Ladovsky designed his own, rather different kind of mass housing, completing a Moscow apartment block in 1929.A particularly extravagant example is the 'Chekists Village' in Sverdlovsk (now Yekaterinburg) designed by Ivan Antonov, Veniamin Sokolov and Arseny Tumbasov, a hammer and sickle shaped collective housing complex for staff of the People's Commissariat for the Internal Affairs (NKVD), which currently serves as a hotel.