© Licensed to London News Pictures. 22/05/2013. London, UK. The Lord Mayor of London greets the Duchess of Cornwall as she arrives at St Paul's Cathedral in London today (22/05/2013) to attend a service of thanksgiving to celebrate the 75th anniversary of the Royal Voluntary Service (RVS). The RVS, previously known as the Women's Royal Voluntary Service (WRVS), is a charity organisation that helps older people live independent lives across Great Britain. Photo credit: Matt Cetti-Roberts/LNP