Description: [caption id="" align="aligncenter" width="430" caption="Enid A. Haupt (l.) and Lady Bird Johnson in the Enid A. Haupt Garden in the South Yard of the Castle, on their way to a celebration being held for Mrs. Johnson in the Arts and Industries Building, April 24, 1988, in honor of her 75th birthday, Mrs. Haupt, a New York philanthropist and noted supporter of horticultural
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