The hidden date for this stamp can be found in the bottom-right corner of the picture.
The Sixth Assembly of the World Council of Churches will take place in Vancouver, British Columbia, from July 24 to August 10, 1983. The Council is an ecumenical organization composed of over 300 Protestant and Orthodox Churches in ninety or more countries. These churches represent 400,000,000 Christians. There will be about 900 delegates at the Assembly in Vancouver, as well as observers from the Roman Catholic Church. The World Council of Churches resulted from the 1948 union of the Life and Work Movement and the Faith and Order Movement. The first of these ecumenical groups had striven to manifest Jesus Christ in social, economic, and political life. The second had brought different churches together to study religious doctrine. In 1961 the Council defined itself as "a fellowship of churches which confess the Lord Jesus Christ as God and Saviour according to the Scriptures, and therefore seek to fulfill together their common calling to the glory of the one God, Father, Son and Holy Spirit." The Council maintains three program units today to pursue its goals: The Faith and Witness unit promotes world mission and evangelism and encourages dialogue between people of different faiths and ideologies; the Justice and Service unit oversees the Council's relief work and its Program to Combat Racism; and the Education and Renewal unit concern itself with theological education. Meeting under the theme "Jesus Christ - the Life of the World," the Sixth Assembly will discuss four sub-themes: Life - a Gift of God, Life in the Midst of Death, Life in its Fulness, and Life in Unity. The Assembly will also consider issues such as threats to peace and survival and the struggle for justice and human dignity. Many expect the Assembly to increase the ecumenical movement's challenge to " denominational security, spiritual tranquility, and theological over-simplicity." The stamp was designed by Gus Tsetsekas of Vancouver. The design features colour steel-engraved cross elements of different strengths and sizes upon a neutral ground. These cross elements, while retaining their own identity, come together to form a larger cross symbolic of its meaning to all churches.