Someone really paid $41,000 for these:
http://www.robertedwardauctions.com/.../2009/842.html
Who ever bought these deserves a punch in the throat. Seriously... a bunch of late 60s test cards that have no historical value.
Why not spend your money on these:
http://www.robertedwardauctions.com/...n/2009/15.html
or
http://www.robertedwardauctions.com/.../2009/143.html
or
http://www.robertedwardauctions.com/.../2009/186.html