Datei:County Flag of Hertfordshire.svg|Description=Hertfordshire flag. The county flag of Hertfordshire registered by the Flag Institute |Source=[http://www.flaginstitute.org The Flag Institute]
Datei:Hertford shield.svgThis image is a derivative work of the following images: File:County_Flag_of_Nottinghamshire.svg licensed with PD-author 2011-06-16T20:58:33Z MissMJ 2609x1445
Datei:Hertfordshire-Flag.jpgFile:County Flag of Hertfordshire.svg is a vector version of this file. It should be used in place of this JPG file when not inferior. File:Hertfordshire-Flag
Datei:FlagOfHertfordshire.PNGFile:County Flag of Hertfordshire.svg is a vector version of this file. It should be used in place of this PNG file when not inferior. File:FlagOfHertfordshire