The fonds is an important source for researching the life and business affairs of the people living in the Dubrovnik Republic in the period from the 15th to the 19th century. It consists primarily of accounting books of debts and receivables (dare et avere), trade journals (giornale), various notes (squarçio, libro picolo, quaderno), general ledgers (libro grande, maestro) and accounting books of different stores (quaderni stacionis).

Volume no. 23 of this fonds is an accounting book which contains various monetary claims of Isac Vita Campos, with an alphabetical index according to the first names of his debtors. It can be assumed that this book contains data on both Isac and his brother Samuel, two prominent Dubrovnik merchants who ran a very successful trading company in the 18th century. The data provide evidence that seven generations of the Campos family lived in Dubrovnik from the 17th to the 19th century. Some accounting books of various Dubrovnik merchants, for example Vicko Stefani, Martolo Đurđević and Benko Resti, also contain data on their affairs with Jewish business partners (vols. 32, 43, 44).

The fonds is very important for the research of the history of Jews in the times of the Dubrovnik Republic since it contains two volumes related to Didacus Pyrrhus. Volume no. 42 contains a transcript of Didacus's poem De Rhacusinae urbid laudibus Carmen from a book which had been printed in Florence in 1613. Volume no. 95 contains a transcript of a short debate on the life and work of Didacus Pyrrhus, entitled Della vita e degli scritti di Didaco Pirro, altrimenti detto Jacopo Flavio Eborense. The text was written by Tomo Krša, a Dubrovnik writer and translator (1782-1826) and it was published in 1826 in Florence in _Giornale arcadio di scienze, lettere ed arti (_vol. 32, 1826). This fonds also contained a volume entitled De Didacho Pirro, Appunti which has been long lost.

The fonds is divided by centuries and covers the period from the 14th to the 19th century. It contains fragments of various books of the Chancellery and the Public Notary, wills and testaments, private letters, letters sent to the authorities of the Dubrovnik Republic from Italian and Ottoman cities, as well as some letters sent from other various parts of the territory of the Republic. Some of these documents were health certificates, petitions to the Minor Council, Criminal Court records, bills of exchange, various receipts of payments and bills.

The State Archives in Dubrovnik have preserved only a few wills and testaments related to Jews so that these documents are of great value and importance for any research related to the life of Jewish population in Dubrovnik during the Dubrovnik Republic. One of those rare documents can be found in this fonds (17th century, vol. 16, no. 8). Jewish people are also referenced in some documents related to court investigations. The fonds also shows records of several letters from the 16th century, that some Jews from Ancona wrote to a Ragusan nobleman, from the Giorgi family (e.g., 16th century, vol. 3, no. 171).