This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
AAF Cloth Chart Asiatic Series No. Southeast China. en World War silk map issued to Army Air Force Aeronautical Chart Service Army Air Force other versions PDUSGov World War II Maps of China
Page 2023 Free-images.com. All images are Public Domain