On 3 March 1885, the German government announced that it had granted an imperial charter, which was signed by Chancellor Otto von Bismarck on 27 February 1885.
1885年3月3日，德意志帝国政府宣布公司已被授予由帝国宰相奥托·冯·俾斯麦在1885年2月27日签署的宪章。