"Post Marked Stamps No. 4" is a split EP between Kansas City, Missouri band The Get Up Kids and Chicago, Illinois group Braid. The album is the fourth in the "Post Marked Stamps" series, a set of nine split EPs between various bands put out by Tree Records in 1997. There were 2 different pressings of the album; One distributed in the United States, and another sold in Europe during the band's joint European tour.