The core of this Collection consists of 150 examples of flags, of which the oldest appeared in the seventeenth century. The Collection contains: medieval standards, military, state, coronation, ban and county flags, the oldest Croatian national flag (the tricolour of 1848), flags with elements of state symbols and those of guilds and civic associations.

The most numerous are the military flags of the Austrian imperial army (regimental and cavalry) which originated in the Military Frontier, and the flags of the Croatian Sokol associations. The military flags include: the standards of Croatian magnates, the flags of the Croatian-Hungarian Home Guards, and the flags of the Kingdom of Serbs, Croats and Slovenes.

Among the historical flags from the Second World War period, the flags of Partisan units are significant. Besides red flags with the five-pointed star or proletarian symbols, there are also national tricolours with a red star and/or slogan.

The uniqueness of the Collection is reflected in the fact that it holds the oldest Croatian tricolours, followed by the flags of the Croatian bans, the Croatian Peasant Party and the highest number of flags of the Croatian Sokol associations from the territory of today’s Croatia and Slavonia. In the most recent years, the Collection has been enriched with new examples of flags which are the symbols of the sovereign Republic of Croatia in the military and political sense.

The Collection also includes approximately one hundred flag streamers which give the flags a particular charm and picturesque quality, and testify to their history in a specific way. Alongside the streamers, the name of the flag’s patron was often tied – often the tailor, spouse of a distinguished military commander, or politicians and other public personalities.