A concept image created for the Graphic Lab on Wikimedia Commons (or "Commonswiki") of the flag of Batavia (now called Jakarta) under the United East India Company and later the Kingdom of the Netherlands.
This file was derived from:

 Coat of Arms of Batavia (1930).svg: 
Flag of the Netherlands.svg: 
Red flag.svg: 
Meuble Héraldique épée.svg: Based on the flags described here: 

Commons:Graphic Lab/Illustration workshop#Batavia's flag
Some flags in Krais &amp; Hoffmann's Illustrirter Hand-Atlas der Geographie und Statistik (1862)
Donald Trung Quoc Don (徵國單), Aldontknow, and Yorick.