Source: 'Hartmann's General List of Apartments in Zagreb , year 1902.

Source: 'Hartmann's General List of Apartments in Zagreb , year 1902.

Source: 'Phone Book - Zagreb 1938 , year 1938.

Source: 'Phone Directory of the Independent State of Croatia 1942 , year 1942.

Source: 'Phone Directory of the Independent State of Croatia 1942 , year 1942.