Genrikh Jagoda and Maxim Gorky (time after november 1935)
Unknown author<span style="display: none;">Unknown author</span>
1935
Russian state archive: <a rel="nofollow" class="external free" href="http://www.rusarchives.ru/evants/exhibitions/xviiexp/320.shtml">http://www.rusarchives.ru/evants/exhibitions/xviiexp/320.shtml</a><br>РГАСПИ. Ф.558. Оп.11. Д.1656. Л.9