The letter is not dated, but it was written on behalf of Boris Podolsky, recommending him for a job. Podolsky “is an explorer in science of undoubtable ability,” Einstein wrote. “[His] lucid mind enables him to demonstrate each matter in the field of physics clearly and originally…I have just finished a project with him and another colleague and have had ample opportunity to evaluate Podolsky’s capability and ability.”
Podolsky, a native of Russia, taught physics at the University in the 1960s. His fame, though, was earned in the 1930s, when he worked with Einstein at the Institute of Advanced Studies at Princeton University.