The first event on the London 2010: Festival of Stamps calendar opens today at the Museum of London Docklands . This new display can be found in the London , Sugar and Slavery gallery, and looks at how the abolition of slavery has been commemorated through postage stamps from the 1930s onwards. 1963 US stamp celebrating the abolition of slavery Post Abolition is created in partnership with the Sands of Time Consultancy . It features over 30...