Methyl Blue for Silk by K. Oehler Manufacturer of Aniline...
Methyl Blue for Silk by K. Oehler Manufacturer of Aniline Dy
Methyl Blue for Silk by K. Oehler Manufacturer of Aniline Dyes Offenbach o.M. in Germany, one of a collection of colour dyes in bottles from the Colour Museum in Bradford, West Yorkshire, c.1900.