Folder of 11 photographic reproductions celebrating 50 years of the Conseil du Physique Solvay 1911-1961, issued Institut International de Physique Solvay Bruxelles (Brussels) [c.1961-2]. +8pp text. [set lacking 12th Conseil 1961]. Sitters identified. Photo for 7th Conseil 1933 is autographed by sitters incl. Schrodinger, Curie, Rutherford etc. Size A3. Conseil du Physique Solvay 1911-1961