From an undated magazine 'What to Wear for Travel'

These two costumes take easily to open road. Left: a three-piece ensemble of Worumbo tweed, coat lined with red mole. Right: a full length Jelaboa coat over a Hockanum wool one-piece dress. Left by Ben Zuckerman, right by Vera Maxwell.
It is very likely that Worumo, Jelaboa and Hockanum are all mills producing high end wool.