Withnail's Coat

I have just seen Richard E Grant's wonderful film Wah-Wah (2005)which he wrote and directed - and been reminded of him in Withnail and I (1987) and the long coat that he wore. I recall seeing it hanging in the fitting room of Davies & Son (when they were based in Old Burlington Street), at a fitting for my morning togs, as posted up earlier on. I remember remarking on its appearance but the cutter seemed just to take it in his stride. I expect that he had been called upon to make stranger things...