1971 Dodge demon 340 4sd, factory roll back top...ever seen one like this?

They were available as a dealer option as well. They were made by ASC (American Sunroof Corp.) and could be installed through the dealer network if I have been told correctly. I have a 69 Cuda that has one installed. The original owner told me he took it to Johnson Motors (Vancouver, BC) a few months after buying the car, and they had it installed. It uses a crank to lock the front, and has a plexiglass tinted plastic visor along the front.

Grant