Description: [caption id="" align="aligncenter" width="350" caption="A passenger pigeon Martha (named after Martha Washington), the last survivor of an American species that numbered in the millions prior to the 1880's, died in the Cincinnati Zoo in 1914, Her body was donated to the Smithsonian Institution and brought to the United States National Museum, now the National Museum of Natural
Description: [edan-image:id=siris_sic_13828,size=350,right]Welcome to our online exhibit about the history of the Smithsonian and postcards! In this exhibit you will find the history and evolution of postcards at the Smithsonian, general postcard history, and a guide for dating postcards. In addition, the image galleries contain over 100 selected postcards of Smithsonian museums,