SEOUL ICM 2014 Commemorative Stamp was issued on July 15, 2014 2014-07-15 [SEOUL ICM 2014 Stamp Collection] The SEOUL ICM 2014 Organizing Committee issued commemorative stamp on July 15, 2014. The stamp contains popular mathematical theorems. The SEOUL ICM 2014 stamp collections will be sold in the souvenir desk during the congress (August 13 ~ 21, 2014).