i.m. pei & partners

“During the many months it took to diagnose and repair the building, sheets of plywood replaced many of the missing glass windows of the building, earning it the nicknames ‘Plywood Palace’ and 'Plywood Ranch’ (the same name as a local lumber yard chain at the time). People joked that the Hancock Tower was 'the world’s tallest plywood building’.”

John Hancock Tower.” Wikipedia. n.d. Web. 05 Jan. 2016.