Shelley in an ad for Pandora, 1972
Shelley appeared in many ads for Pandora, a fashion line that had been around since 1938. In one 1872 ad, she modeled Pandora's "prettiest possible pastels" namely: the "Tidy Alice" turtleneck top over a pair of plaid flyfront trousers and finished with a very-V cardigan with "flutter sleeves". And Shelley looked pretty in those pastels indeed.
a closeup of Shelley from an ad for Pandora, 1972