in 2007, co-founder of the carlisle group and philanthropist david reubenstein purchased one of only four known original 1297 magna cartas and the only original copy in the united states. in 2009, he permanently loaned the document to the national archives as a gift to the american people. it was taken off display in 2011 to undergo conservation treatment and to be placed in a new protective case. american history tv attended a press briefing for the unveiling of the newly encased magna carta. >> i'm david barry of the archivist of the united states and it's a pleasure to welcome to you one of the conservation labs of the archives. for many a year, the only copy of the magna carta has been out of sight, undergoing conservation treatment. we're showing you the result of our staff's expert pain staking work displayed in a new encasement designed and fabricated by the national institute of standard and technology. the 700-year-old document looks better than ever. when the magna carta is back on public display beginning february 17, it will be a more accurate rendition of the record. vis