Diamine Scarlet B by L. Cassella & Co., Anilinfarbenfabrik...
Diamine Scarlet B by L. Cassella & Co., Anilinfarbenfabrik F
Diamine Scarlet B by L. Cassella & Co., Anilinfarbenfabrik Frankfurt o.M in Germany. One of a collection of colour dyes in bottles from the Colour Museum in Bradford, West Yorkshire, c.1900.