Karl Bock & Söhne, Brandis in Sachsen, Rechnung vom 24. Februar 1921, 24 February 1921
Karl bock & sons, chemical and technical products, brandis in saxony, invoice dated february 24, 1921 for j. Konetzny company, leipzig-lindenau. 1 barrel of scale remover and contraceptive “renal”. Date: 24 February 1921.