This dazzling, defiant picture of Helen Mirren is the perfect blueprint for growing old... but Vogue's airbrushed supermodels prove we women are still in such a muddle about ageing

Extraordinary, isn't it, that the original supermodels, who graced almost every issue of Vogue in the late 1980s, haven't aged one bit in more than 30 years if these pictures are to be believed.