Though not accurately documented, it is very likely that many of Svobodnoe Slovo’s publications in IISH’s collection originate from the Žuk (Zhook) collection acquired in 1949. Regarding this collection, the 1949 annual report notes the following:
"Undoubtedly, the most important event in the life of the Russian Cabinet during the course of the last year has been the purchase of a small Russian library from Mrs. Zhook from London, which she and her deceased husband W. P. Zhook – who at the beginning of this century published under the aliases Baturinsky and Baranov, and was author of amongst other works 'A. I. Herzen, his friends and acquaintances' (1904, Russ.) – established partly in Russia, but especially abroad. The acquisition of this library represents a special enrichment for the cabinet. [...] the Zhook collection comprises some 270 brochures, primarily foreign publications about the various ideologies within the Russian revolutionary and opposition movement. [...] and the especially numerous group of works by the Tolstoyans (circa 100 works), which represent a marvellous addition to the cabinet's Tolstoy collection."
The inventory of the Vasily Pavlovič Žuk's archive can be found at http://www.iisg.nl/archives/en/files/z/10773375.php