6th PanAfrican Prehistory Congress September 10, 2018 1967 cachet Central African Republic lithic megalith + ofdc 1967 cachet Central African Republic lithic megalith ofdc
Hei-tikis September 06, 2018 1968 1996 maxicard New Zealand ofdc + postcrossing 1968 1996 maxicard New Zealand ofdc postcrossing
Bratislava Museum February 23, 2018 1985 ceramic Czechoslovakia +0 museum 1985 ceramic Czechoslovakia museum