The series contains the drafts of letters and instructions of the authorities of the Republic to Dubrovnik emissaries, tribute ambassadors, consuls, administrators of Dubrovnik consulates, chargé d'affaires, or merchants in the cities of the Ottoman Empire. The preserved registers date from the middle of the 17th century to the 60s of the 18th century.

The series contains a small number of letters addressed to some Jewish people from Sarajevo, such as Abram Meramet, Abram Levi, and others (e.g., vol. 1, no. 25).