- Collection of materials from the period of the first Yugoslav state
- Collection of materials from the national liberation struggle (NOB) period
- Collection of materials from the German occupation period
- The Bogdan Žolnir collection
- The dr. Ljuba Prenner collection
- The Maks Kunc collection
- Collection of contemporary historical materials (after 1945)
- The dr. Alojz Bratkovič collection
- Collection of the former municipality Razbor
- Field-work related materials
- Ethnological materials
- Documentation
- The Hugo Wolf collection
- The dr. Hans Winkler collection
- The Carinthian national referendum (plebiscite) collection
- Šmartno near Slovenj Gradec photo archives
- The Ferdinand Leitinger collection
- The Franc Ksaver Meško collection
- Illegal Crossings of the Austrian Border collection
- The Orel (Eagle) society – section Šmartno near Slovenj Gradec
- Collection of the Smithery and Fire-fighting Museum in Muta
- Collection of postcards from Carinthia
- The Jakob Soklič collection
- The “Carinthia 1918/1920” collection
- Mislinja ironworks collection
- The “Reading badge” collection
- The “Forma viva” collection
- Land Register of Farms collection