The first installation of Wall Drawing #47 was drawn in June 1970 by Kazuko Miyamoto, at the Philippe-Guy Wood Residence in Vasenaz, Geneva. The Museo Reina Sofía acquired the piece in 2009 and the first installation was in 2011. The current installation, carried out between 3 November and 10 December 2014, is on a wall 5 metres high and 15.8 metres wide. The draughtspersons are Roland Lusk and Andrew Colbert, under the direction of John Hogan, with the participation of six assistants. Wall Drawing #47 requires meticulous work to ensure uniform pressure of the pencil on the support. It is finished with a water-based varnish applied by a specialist from the Sol LeWitt Studio and an assistant.
Sol LeWitt, Wall Drawing #47, 1970