The 'flag of Vojvodina' is based on the Serbian flag.
The 1955 painting is the second in a series that the artist based on the American flag.
Given that, it was likely based on the similar flag of Ireland (then also unofficial).
According to one version, the design was based on the Dutch flag in honor of the ship's builders and crew.
The flag itself is based on the first Confederate flag, the Stars and Bars.
Several flags used by government officials and agencies were based on the national flag.
It is based on the flag of the United States of Central America.
It is based on the flag that was once flown at Fort Whoop-Up.
The municipal flag of Jerusalem is based on the flag of Israel.
Originally used without arms, the first design of the state flag was based on the Venezuelan flag of 1811.
