One of the first widely-accepted memory lighting control systems, installed primarily in very large theatres, opera houses, and high-profile TV studios. Made by Thorn in England, and sold in the US by Kliegl Bros. See also http://www.controlbooth.com/wiki/Collaborative+Articles:Memory+Lighting+Control+Systems+History.
A PDF manual is available in the wiki entry Kliegl Bros..
View attachment 5580
http://www.klieglbros.com/catalogs/SpecSheets/qfile1000/qfile1000prelimp2.jpg
A PDF manual is available in the wiki entry Kliegl Bros..
View attachment 5580
http://www.klieglbros.com/catalogs/SpecSheets/qfile1000/qfile1000prelimp2.jpg