Hei-tikis September 06, 2018 1968 1996 maxicard New Zealand ofdc + postcrossing 1968 1996 maxicard New Zealand ofdc postcrossing
Young Olympics September 29, 2017 1968 imperforate Mexico mini sheet +0 ofdc 1968 imperforate Mexico mini sheet ofdc
Lascaux July 26, 2016 1968 2015 Bosnia and Herzegovina +3 cachet cancel France maxicard ofdc postal stationery rock art unesco 1968 2015 Bosnia and Herzegovina cachet cancel France maxicard ofdc postal stationery rock art unesco
Spiennes Mine February 02, 2012 1968 2009 Belgium lithic Neolithic ofdc postcard + unesco 1968 2009 Belgium lithic Neolithic ofdc postcard unesco
Skogerveien November 03, 2011 1963 1967 1968 1970 cachet Norway ofdc + rock art 1963 1967 1968 1970 cachet Norway ofdc rock art
National Treasure April 24, 2011 1968 2009 joint issue Korea South +0 metal 1968 2009 joint issue Korea South metal
Chan Chan April 05, 2011 1968 1987 1989 cachet ofdc Peru + postcard 1968 1987 1989 cachet ofdc Peru postcard