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Keywords from Image Description:
Valkenburg zh flag. Flag of the Dutch municipality of Valkenburg ZH own work own Quistnix Flag of Valkenburg svg GFDL Ccbysa migrated Ccbysa PDNLgemeentevlag Valkenburg South Holland Flag Superseded flags of municipalities of South Holland Valkenburg Symbols of Katwijk South Holland Valkenburg Flag Diagonal bicolor red and yellow