Some info courtesy of globalsecurity.org.
"Sverdlov", the lead ship of project 68 bis, was laid down on 15 October 1949, launched on 5 July 1950 and commissioned on 15 May 1952. Their construction was carried out in accordance with a new technique, by forming (for the first time in national shipbuilding) an all-welded hull (instead of riveted one), which allowed to reduce the construction period about twice. The construction period was brought to two-and-half years. The cruisers of project 68 bis became the biggest series in the history of national shipbuilding. Baltiysky Zavod built in total six cruisers of this project.
The major surface units in the post-WWII Soviet Navy, construction halted when Nikita Khrushchev decided the program had been made obsolete by the advent of guided missiles. One unit was converted to an experimental guided missile cruiser [the Adm. Nakhimov] and the Dzerhinsky was refitted in 1960 with the SA-N-2 surface to air missile. Two other units were converted to command ships in the early 1970s.