Chinese revolutionary army portrait named

Chinese revolutionary army (Kuomintang, or KMT) portrait. Very rare portrait taken in 1938 of a member of the KMT and most likely a member of the 87th Division trained by the Germans in China. Postcard size, named on the front, portrait paper, very sharp look to it.

Choyang, 31.3.1938. Oberstleutnant Tung Yin Huai.