Hi Jeremy
No idea sorry, but I have a green one that's similar. In Australia we commonly had them under the brand name "ROWCO".
Mine had an original porcelain B22 socket which was a bit unusual. I'll try and dig it out an get photos up in my gallery.
the picture of the green one you meantioned is also one of the lights in my avator picture so yes i had seen green ones before,i personaly like green ones better(green is more than white on childhood look...etc)