Hi Steve. I'm a regular visitor to your Early Television Foundation site and seeing your recent updates I noticed some of the Life Magazine images featuring the colour screen shots of the CBS colour system you've dated as early 1940s. Which makes me ask the question, are all of these colour TV snaps http://images.google.com/hosted/life/l?q=color+tv+source:life&imgurl=e49b5ce7c1014e23 also from the early 1940s as they are related to that early 40s CBS colour test pattern?