The adult-sized mannequin had a blonde wig and its right eye was painted with the same distinctive mark as Madeleine.
It was dressed in a white and blue tracksuit and wore a sun hat similar to the one worn by the child in some of the most famous pictures of her on holiday in Portugal before her disappearance.
An explanation in Portuguese stated that the mannequin was a representation of Madeleine - although – especially given its adult size - it looked more like her mother Kate.
The poster read: "It is very important to remember that you cannot exist as an adult without having been a child. "Return Madeleine please."
Madeleine: One year on in Praia da Luz - prayers, collages and a bizarre mannequin of missing girl | the Daily Mail