Sir Charles: I believe the Hanyangs were made later, post 1900. What I have read was, the GEW 88s in China at that time were sold to them by the European makers. Later the machinery for making them was also sold to China. There they made and used them up through WWII.
From what I have read, surviving 88/14s are pretty rare. Mine is the more common type, 88/05 with some Turk parts and Turk marked sights, but still in original configuration otherwise, straight grip stock and barrel jacket.
Charles I., was the General's Krag a US? It appears to be a sporterised one. Could have been one of the European ones?