37 signatures of Chemistry Nobel Laureates, mostly about 5,75 x 4 inch (in the main cards or album pages), mostly signed in blue ink or black ink - including J.H. Northop, E.M. McMillan, G.T. Seaborg, A.J.P. Martin, L. Pauling, A.R. Todd, F. Sanger, W.F. Libby, M. Calvin, M.F. Perutz, J.C. Kendrew, R.S. Mulliken, G. Porter, M. Eigen, D.H.R. Barton, O. Hassel, L.F. Leloir, G. Herzberg, C.B. Anfinsen, G. Wilkinson, E.O. Fischer, P.J. Flory, V. Prelog, J.W. Cornforth, W.N. Lipscomb, I. Prigogine, H.C. Brown, P. Berg, R. Hoffmann, K. Fukui, H. Taube, H. A. Hauptmann, D.R. Herschbach, J.C. Polanyi, T.R. Cech, S. Altmann, R.A. Marcus, bulk with very mild signs of wear - overall in nearly very fine condition.