Some or all works by this author are in the public domain in the Slovak Republic and possibly other jurisdictions, according to the Slovak Copyright Act. (Law No. 618/2003 English translation, Part two, Section 7, Article 3b)
"(3) No protection under this Act shall extend to
b) any text of legislation, official decision, public document, publicly accessible register, official file, Slovak technical standards including the preparatory documentation and translations thereof, mere news of the day and speeches delivered in the course of proceedings in public affairs; however, the publication of a collection of such speeches or their inclusion into a chronicle requires the consent of the person who delivered them."
Hence it is assumed that this image has been released into the public domain,however, in some instances the use of this work might be regulated by other laws.