Call box cards. Most call boxes in and around London have these cards in them. Indeed in the early 90's British Telecom even considered making a Telephone directory of them.
The pictures on the cards bear little or no relation to the person on the other end of the phone line... one wonders if anyone has ever attempted to sue for false advertising.
The girls themselves are very protective of their cards and can become quite upset if they are removed from their placement inside of the phone box. They are often taken not so people can avail of their services but as souvenirs by tourists.
