| 25. | Letter from the Austro-Hungarian Ministry of Railways to the Union Baugesellschaft company about the construction of a rack railway from Lovran to Učka Documentos e Manuscritos | Documents and Manuscripts HMT-204 1909-10-02 |  | |
| 26. | Letter from the Presidential office of the Ministry of Trade Documentos e Manuscritos | Documents and Manuscripts HMT-193 1909-03-30 | | |
| 27. | Letter from the Union-Baugesellschaft company about the construction of a hotel on Učka Documentos e Manuscritos | Documents and Manuscripts HMT-196 1908-12-14 | | |
| 28. | Letter of the Union-Baugesellschaft construction company to Dr Eder regarding the construction of the Učka railway Documentos e Manuscritos | Documents and Manuscripts HMT-194 1909-10-03 | | |
| 29. | Letter on the letterhead of the Grand Hotel Europe, Rijeka Documentos e Manuscritos | Documents and Manuscripts HMT-2026 1902-01-01 | | |
| 30. | Letter on the letterhead of the Hotel al Vapore in Zadar Documentos e Manuscritos | Documents and Manuscripts HMT-2024 1904-01-01 | | |
| 31. | Letter on the letterhead of the Hotel Wien Crikvenica Documentos e Manuscritos | Documents and Manuscripts HMT-2524/1 1935-01-01 | | |
| 32. | Letter on the letterhead Therapia-Palace Cirkvenica Documentos e Manuscritos | Documents and Manuscripts HMT-2021 1902-01-01 | | |
| 33. | Notes from books about the history of Istria (year 1957), vol. I Documentos e Manuscritos | Documents and Manuscripts HMT-3065 0-- | | |
| 34. | OVOJNICA Documentos e Manuscritos | Documents and Manuscripts | | |
| 35. | OVOJNICA Documentos e Manuscritos | Documents and Manuscripts | | |
| 36. | Part of the minutes of a meeting of the Commission for the construction of an electric railway from Lovranska Draga to Učka Documentos e Manuscritos | Documents and Manuscripts HMT-197 1910-01-01 | | |
