Empire of Vietnam (1920-1945)

Flag of the Empire of Vietnam under the Emperors Khai Dinh & Bao Dai. It should be noted that the red used here fits closer to the first flag rather than the second, which uses a more crimson color.

Original Flag:
https://upload.wikimedia.org/wikipedia/commons/thumb/2/2f/First_flag_of_the_Nguyen_Dynasty.svg/640px-First_flag_of_the_Nguyen_Dynasty.svg.png