Hofmann's violet 4R. by Society of Chemical Industry, Basle in Switzerland. One of a collection of colour dyes in bottles from the Colour Museum in Bradford, West Yorkshire, c.1900. Hofmann's violet 4R. by Society of Chemical Industry 1900-1905
Diphenylamine Orange by Society of Chemical Industry, Basle in Switzerland. CIBA brand registered. One of a collection of colour dyes in bottles from the Colour Museum in Bradford, West Yorkshire, c.1900. Diphenylamine Orange by Society of Chemical Industry 1900-1905
Pyrogene Yellow M. by Society of Chemical Industry, Basle in Switzerland. CIBA brand registered. One of a collection of colour dyes in bottles from the Colour Museum in Bradford, West Yorkshire, c.1900. Pyrogene Yellow M. by Society of Chemical Industry 1900-1905
Pyrogen Indigo by Society of Chemical Industry, Basle in Switzerland. CIBA brand registered. One of a collection of colour dyes in bottles from the Colour Museum in Bradford, West Yorkshire, c.1900. Pyrogen Indigo by Society of Chemical Industry 1900-1905
Fuchsia by Society of Chemical Industry, Basle in Switzerland. One of a collection of colour dyes in bottles from the Colour Museum in Bradford, West Yorkshire, c.1900. Fuchsia by Society of Chemical Industry 1900-1905
Paper Red PSN by Society of Chemical Industry, Basle in Switzerland. One of a collection of colour dyes in bottles from the Colour Museum in Bradford, West Yorkshire, c.1900. Paper Red PSN by Society of Chemical Industry 1900-1905
Pyrogen Olive 3 G by Society of Chemical Industry, Basle in Switzerland. One of a collection of colour dyes in bottles from the Colour Museum in Bradford, West Yorkshire, c.1900. Pyrogen Olive 3 G by Society of Chemical Industry 1900-1905
Soluble blue for silk by Society of Chemical Industry, Basle in Switzerland. One of a collection of colour dyes in bottles from the Colour Museum in Bradford, West Yorkshire, c.1900. Soluble blue for silk by Society of Chemical Industry 1900-1905
Rhodine 3GW by Society of Chemical Industry, Basle in Switzerland. One of a collection of colour dyes in bottles from the Colour Museum in Bradford, West Yorkshire, c.1900. Rhodine 3GW by Society of Chemical Industry 1900-1905
Helvelia Green. YYO. by Society of Chemical Industry, Basle in Switzerland. One of a collection of colour dyes in bottles from the Colour Museum in Bradford, West Yorkshire, c.1900. Helvelia Green. YYO. by Society of Chemical Industry 1900-1905
Pyrogen Yellow R by Society of Chemical Industry, Basle in Switzerland. One of a collection of colour dyes in bottles from the Colour Museum in Bradford, West Yorkshire, c.1900. Pyrogen Yellow R by Society of Chemical Industry 1900-1905