Thomas Crellin and students at the Kodak Professional School, Shanghai, 1923

Tommy Crellin at the Kodak Professional School, Shanghai, 1923

Tommy Crellin and students at the Kodak Professional School, Shanghai, 1923

Students at the Kodak Professional School, Shanghai, 1923

Jack Ephgrave and colleague in chemical room, Pudong factory, Shanghai

Commercial printing equipment, Pudong, Shanghai

Print workers, with chemicals, Pudong, Shanghai

Nurse in hospital pharmacy, Shanghai