Tag: Mary Lynn Ritzenthaler
Constitution 225: Conservation and Re-encasement
In light of the upcoming 225th Constitution Day on September 17, I spoke with Mary Lynn Ritzenthaler and Catherine Nicholson, two of the very few people who have touched the Constitution in the last century, about how they approached the task of conserving the Charters of Freedom.
Posted by Nikita on September 4, 2012, under - Constitution.
Tags: Catherine Nicholson, conservation, Constitution, Constitution 225, encasement, helium, insect damage, japanese paper, Mary Lynn Ritzenthaler, National Bureau of Standards, parchment size, preservation
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