"In 1983 a painting titled ‘Dead Soldier (No. 741)' was transported from the National Gallery in Washington to the National Gallery in London. A technical document detailing the case built to transport this work describes it as being constructed from aluminium, plywood and plastazote - a kind of polymer foam. Bags of silica gel were taped to the inside of the case, and a sheet of ‘Kraft' paper wrapped the painting. Fastened within the lining was a temperature and humidity recorder..."