拍品专文
Fewer than 200 examples of the Red Flag camera were made. It was a copy of the Leica M4.
细节
A 35mm. Red Flag 20 camera no. 73047 with a Shanghai f/1.4 50mm. lens no. 730053, lenshood and cap.
出版
St Denny, Cameras of China, p. 36, 37, 93.