I don't see much mystery about it, unless the label looks altered as opposed to marred or faded. It would be pretty easy to fake an LC rod with a Fisher blank, but it's not like there is a lucrative market for them. Worst case scenario, and highly unlikely , a good "fake" on a Fisher blank would be a great rod anyhow. So is the real thing, the Fisher-made blank being the key reason.
Obvious evidence lacking, you have the real thing. High grade cosmetics and fittings on a Fisher blank. Use the search function here (upper right of the frame) to find out all you want to know. Here's a link for starters.
viewtopic.php?f=3&t=1043&start=25#p212845