| 1. | Abbazia / Opatija Bilhetes-postais | Postcards HMT-39 1900-01-01 |  | |
| 2. | Villa Harrach. Opatija. Bilhetes-postais | Postcards HMT-53 1983-01-01 | | |
| 3. | Villa Neptun, Opatija Bilhetes-postais | Postcards HMT-50 1900-01-01 | | |
| 4. | Villas in the harbour, Opatija Bilhetes-postais | Postcards HMT-56 1900-01-01 | | |
| 5. | Villas on the southern coastal promenade Bilhetes-postais | Postcards HMT-23 1905-01-01 | | |
