Machu Picchu April 03, 2016 1986 2011 2014 Brazil cancel joint issue mini sheet ofdc Peru postcrossing registered unesco +
Mohenjo-daro January 21, 2016 1973 1976 2002 2014 aerogramme Japan joint issue ofdc Pakistan unesco +
Nubian Monument Campaign September 30, 2013 1964 1965 1967 1980 Egypt Gabon Maldives ofdc unesco Uruguay +
Ljubljana Marsh August 08, 2013 2008 2013 cachet ceramic fdc mini sheet museum Slovenia unesco wood +