Pyramids of Giza September 29, 2017 1972 2005 2007 airmail censor Egypt joint issue Nepal ofdc unesco United Nations +
Hadrian's Wall October 01, 2012 1986 1993 2005 2009 aerogramme Australia booklet bronze Great Britain Italy joint issue maxicard PHQ postcrossing unesco +
Chersonesus June 13, 2012 2005 2013 2015 mini sheet postal stationery postcard postcrossing Russia Ukraine unesco +
Kurgan Stelae January 30, 2012 2005 2014 mini sheet postal stationery postcard postcrossing Russia Ukraine +