“Space-Time Approach to Non-Relativistic Quantum Mechanics“ (Reviews of Modern Physics 20 pp. 367-387, 1948)
Feynman's path integral formulation of quantum mechanics. Also contains "A Generalized Theory of Gravitation" by Albert Einstein (pp. 35-39).Volume beautifully bound in cloth and boards in pristine condition inside and out.
$900 (Retail)