5230
493-573
: Russian Correspondence, 1960-1961 (correspondence with Soviet friends about manned space flight, news of mutual friends, Cold War, travel plans (many letters in Russian, with English translations); bookplate samples from Nikiforov; see also: Nikiforov, Nikolai Alexeevich; Solov, Alyosha, Galya, and Nikiforov; Soviet Friends; and Zaborovsky, Frank)