The outer gold frame was placed over the completely enclosed and sealed Declaration of Independence after the flushing operation was completed. Mr. Gilles and Dr. Wampler of Libbey-Owens-Ford Glass Company fasten the last screws in the assembly. The lead from the bottom of the container enabled the leak detector meter to be connected to the leak detecting cells without removing the enclosure from the Shrine at the Library of Congress.
National Institute of Standards and Technology
National Institute of Standards and Technology