Heck, I've actually got three copies of the album with no title on the front (just catalog info at the top right). Why did I bother to buy three copies though? Well that's because of the records inside the jackets! One is the normal tan colored Reprise label, one is a white-label promotional-copy style, and one is a two-color Reprise label with the "W7" - 7-Arts logo which was on the way out at the same time that GL was starting with Warners.
We talked about this in a previous thread, I posted photos those different labels, and a photo of one of my blank-cover sleeves (I have one still with shrink wrap on it, opened though) and a photo of yet a different label on the record that I had not seen before was posted as well:
http://www.corfid.com/vbb/showthread.php?t=20053&
-Andy