Dr. Friedrich & Cie., chemische Fabrik, Glösa bei Chemnitz, Rechnung vom 11. Juni 1902, 11 June 1902
Dr. Friedrich & cie. , chemical factory, glösa near chemnitz, invoice dated june 11, 1902, for mr. J. Konetzny, leipzig-lindenau, fur dyeing and finishing works, for: 1 barrel of ia hydrogen peroxide. Date: 11 June 1902.