A retired Swedish gym teacher is the toast of Greece after returning a piece of sculpted marble taken from the Acropolis more than a century ago.

Birgit Wiger-Angner's family held the marble for 110 years, but she decided to return it to Athens after hearing about Greece's Elgin marbles campaign.

The small fragment comes from the Acropolis's Erechtheion temple.

The move has boosted the international campaign to persuade the British Museum to return the Elgin marbles to Athens.