Description: [caption id="" align="aligncenter" width="360" caption="Steven Cohn, the Smithsonian’s Office of Safety, Health and Environmental Management and the museum’s representative Industrial Hygienist, tests Owney's fur for arsenic, lead and mercury. Courtesy of the National Postal Museum "Pushing the Envelope" blog."][/caption] More interesting preservation challenges. We’ve covered
Description: [caption id="attachment_2376" align="aligncenter" width="300" caption="blurredvision, by Flickr user Paul Denton Cocker."][/caption] According to the National Eye Institute, more than 3 million Americans are blind or have vision so poor that everyday tasks become extremely difficult. Interestingly, according to a recent article by Pam Belluck in The New York Times, a new