Description: [caption id="" align="aligncenter" width="221" caption="Uniformed Letter Carrier with Child in Mailbag, by Unidentified photographer, c. 1900, National Postal Museum."][/caption] Since the Smithsonian began uploading photos to the Flickr Commons, there have been some clear crowd favorites. The photo above, for example, is by far our most popular photo on the Flickr Commons,
Description: For Preservation Week, our team answered our burning, often ignorant questions about their biggest challenges, what they consider when treating objects, and beyond.