On behalf of 100 years of the existence of the IPO, the Office has issued a monograph where the history of the activities of the IPO, since its foundation on November 15, 1920, has been described along with the history of IPR protection that goes further back to the past when the Paris Convention has been signed.
The publication is issued in Serbian, but at the end, there is also a summary in English.
The monograph is available HERE.