Manufactured by: unknown, in the 1900sOrigin: Donation from Teinturerie Pierre Burhenne, EnsivalVerviers Museum Collection: No. A112The parts are immersed in heated vats containing water, urine, potassium alum and colouring agents. The dyeing could be carried out at various stages of the manufacturing process: scouring for washed wool, hanking for threads or pieces for plain coloured fabrics.