The Conservation Center for Art & Historic Artifacts highlights preservation work done on two sheets of stamps for the Smithsonian National Postal Museum in their fall 2012 newsletter (PDF).
CCAHA treated the Peace of 1783 and Byrd Antarctic Expedition II sheets from James A. Farley’s collection to remove them from secondary supports they had been mounted on. (Collectors will note they preserved the original gum on the stamps.) The conserved sheets will be on display in the William H. Gross Stamp Gallery when it opens.
The entire newsletter focuses on ephemera. “Challenges & Strategies in Preserving Ephemera” provides tips for archives, museums, and individuals with vulnerable material.