Here are three references to Colin Glascoe that I found in one of the newspaper databases to which I have online access:
1967: "Evening dresses are often long in London collections, such as Colin Glascoe's hooded, full-sleeved dress in American Ban-lon colored prints."
1968: "An exception to the plain colors were Colin Glascoe's gypsy prints, which roused a cheer from the buyers."
1969: "Colin Glascoe, the resort wear specialist who is one of England's highly successful exporters, is showing buyers a collection that is unashamedly pretty and right in the trends.
His Italian prints in stained glass window colors look like a view through a kaleidoscope or broken mosaics. Another group is copied from 1920 prints in challis and peacock spot effects. He likes a tennis dress style with long torso and flat pleats from mid-hip, and there are lots of shirtwaisters ans tunic trouser suits. There are simple-fitted sheaths for daytime, relying on the print and color for effect, and long, slim dresses for evening."
Lynne