2019-09-112019-09-111996ZSSD-2http://hdl.handle.net/10673/571Commemorates the Zoo's participation in Endangered Species stamp issue. Additional memorabilia associated with this event: T-shirts, decorative stamp booklets. Gift of the United States Postal Service.2 panes of Endangered Species stamps from the U.S & Mexico. Mounted on green background with a beige mat & a gold-edged, green-mottled frame. Gold plaque reads "United States' Endangered Species Commemorative Stamps and Mexico's Lets Preserve the Species 1996 Stamps Joint First Day of Issue -- San Diego Zoo -- San Diego, California -- October 2, 1996"en-USCommemorative postage stampsEndangered SpeciesFramed Endangered Species StampsJoint First Day of Issue of the "Conservemos las especies de Mexico" and the "Endangered Species" stamps, October 2, 1996Other