|Note_en=Editorial advertisement of the brand, on the occasion of the 30th anniversary jubilee. Mention the company as ''"Greif-Werke A.G., Fabriken für Bürobedarf"'', Goslar am Harz. | |Note_en=Editorial advertisement of the brand, on the occasion of the 30th anniversary jubilee. Mention the company as ''"Greif-Werke A.G., Fabriken für Bürobedarf"'', Goslar am Harz. |