Dr. Cahn & Frank, Chemische Fabrik, Berlin, Rechnung vom 19. September 1902, 19 September 1902

Dr. Cahn & frank, chemical factory, berlin, invoice dated september 19, 1902, for mr. J. Konetzny, leipzig-lindenau, fur dyeing and finishing works. For: 5 ko. Pyrogallic acid br. Date: 19 September 1902.