Ciba Clayton
of Manchester
1911 Clayton Aniline Co was acquired by the Society of Chemical Industry in Basel (a company later known as Ciba).
1954 The sales organisation of Clayton Aniline was hived off to form the Clayton Dyestuffs Co. Ltd
1958 Name changed to CIBA Clayton Ltd.
1959 Maker of dyestuffs, textile auxiliaries, chemicals and leather oils.
1960 photos of Clayton laboratory here and here.