I'm pretty sure that the fat boy and the slim weren't called that when they were new, those are just names that we collectors have given them over time to help distinguish which razor that we're talking about. What were the super adjustables called at the time. We call them super adjustables and black beauties but I've seen some packaged ones on here and they just say Gillette adjustable razor on them. Just throwing this out there to start a new topic for discussion.