Containers are located on the table near the elevator on the upper level and across from the office on the lower level to place your used postage stamps. Foreign and U.S. stamps are needed, but machine generated stamps cannot be used. Leave PLENTY of paper surrounding the stamp, and no paper clips or rubber bands, please! These stamps are sold to stamp dealers, and the proceeds are used to benefit and distribute Sunday School materials for many denominations throughout Central and South America. Contact Jan Kuhns for additional information.