following license: English Flag of Ptuj German Flagge von Ptuj Slovenian ZastavaPtuja Wikimedia username: Isidor Welti author name string: Isidor Welti URL:
following license: English Flag of Ptuj German Flagge von Ptuj Slovenian ZastavaPtuja URL: https://commons.wikimedia.org/wiki/user:Isidor_Welti Wikimedia