Ngô Đình Khả

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Photo from https://en.wikipedia.org/wiki/File:Ch%C3%A2n_dung_Ng%C3%B4_%C4%90%C3%ACnh_C%E1%BA%A9n.jpg This work is in the public domain in Vietnam for one of the following reasons: It is a cinematographic work, photographic work, work of applied art or anonymous work first published more than 75 years ago. (See Commons:Copyright rules by territory/Vietnam) It is a cinematographic work, photographic work, dramatic work, work of applied art or anonymous work first published more than 50 years prior to January 1, 2010. It is another type of work, and the creator died more than 50 years ago.