"Great Britain. War Office. General Staff. Geographical Section. G.S.G.S. 3825."
"Compiled and drawn at W. O. 1927. Partially redrawn and heliographed at O. S. 1933, and printed at W. O. 1938."
"In upper left margin. China 1:250,000."
"G.S.G.S. no. 3825."