Another post from a trusted expert on Graflex Corp:
http://www.graflex.org/helpboard/viewtopic.php?t=455

A brochure:
http://www.cameraeccentric.com/html/info/graflex_7.html

and a way to date it:
http://www.graflex.org/helpboard/viewtopic.php?t=3321



post the serial number of your other graphic if you would like an approximate dom.