"Samizdat: I write it myself, edit it myself, censor it myself, publish it myself, distribute it myself, and spend time in prison for it myself"

- Vladimir Bukovskij

From photographs of the journal, it is quite clear to see that, like most samizdats, СИРЕНА was written on a typewriter. In fact, all of the written poetic works found in the samizdat are written straight and neatly. No information about the actual typewriter used was found, yet all typewriters are quite similar in the way they work as it is a mechanical machine with a set of keys depicting characters. In order to be able to use a typewriter to write СИРЕНА, the editor, Kaplan, had to have access to one and thus have financial ressources to buy a machine and paper or have contacts that had the equipment. 

It was quite dangerous for samizdats to be typed as typewriters were inventorized and one needed permission to access printing devices. As this journal shared new socio-political ideas through its poetic works and illustrations, it was very risky for the writer to print the copies. As Bukovskij said, when writing a samizdat you had to think about the possibilities of going to prison for it. Typewriting the ideas shared at the gatherings at the Mayakovsky monument made it even more dangerous for the writer. Furthermore, not only it was dangerous for the writers, but typed texts that were not published by the State were also extremely dangerous for people to read. Writers and readers of illegal texts were threatened, arrested and beaten. Therefore, these cultural and technical conditions in order to produce and read the journal greatly affected its endangerment. Moreover, since it was dangerous to produce copies, the afterlife of the samizdat was compromised as less copies were able to be produced. СИРЕНА only had five copies produced and distributed in Moscow, Riga and Leningrad.