Photos from the candidates tournament in Neuhausen/Zürich 1953.
Source: Euwe, Schach-Elite im Kampf
Source: Wood, The World Championship Candidates’ Tournament
Source: Chess Review 1953
Left to right: Bronstein, Averbakh, Petrosian, Taimanov, Gligoric and Najdorf. Source: Wood, The World Championship Candidates’ Tournament
Source: Euwe, Schach-Elite im Kampf
Left to right: Kotov, Taimanov, Flohr and (probably) Postnikov. Also Bronstein in the background. Source: Euwe, Schach-Elite im Kampf