A sheetlet on the 4th WPK Conference carries on its upper part letters reading "Commemoration of the 4th Conference of the Workers' Party of Korea" and "April 11, Juche 101 (2012)".

Seen in it are pictures of leader Kim Jong Il and the dear respected Kim Jong Un against the background of the WPK flag and Mt. Paektu, a holy place of the revolution.

Printed in a sheet and an individual stamp on the celebrations of the 66th KCU anniversary are letters "Commemoration of the 66th anniversary of the Korean Children's Union" and "Juche 35 (1946)-Juche 101 (2012)" and slogan "Love the Future!"

In the center of the sheet is a picture of Kim Jong Un among KCU members. Seen on either side are President Kim Il Sung's autograph "Children are treasures of our country. The future of Korea belongs to them", letters reading "June Sixth Children's Day" and a red tie symbolic of the KCU.

Depicted in the individual stamp are the KCU flag and KCU members.

Those stamps show in an intensive way the historic significance of the 4th WPK Conference and the peerlessly great persons' deep love for the posterity.