This article mentions that Quadriga cloth was introduced in 1940-1941:
http://info.fabrics.net/a-stroll-through-fabric-stores/
This article also mentions E&W Quadriga:
http://hartcottagequilts.com/his4a
Googling brings up newspaper ads for Quadriga Cloth through at least 1959.
I think that the width of the fabric was last manufactured in the 1970s, but I didn't find a website that explained when manufacturers went to our current width.