I just learned two interesting things about this bike from a Website called Cyclingeezer.
1. The maker of the bike REDLOF spelled backwards is F O L D E R. That is it? Folder? It is an odd enough name that I was thinking about it but, I wasn't thinking it was an English word spelled backwards.
2. The position of the serial number is on the bottom bracket tube on the non-drive side. It is clearly visible on Cyclingeezer's bike, but why my frame is missing the engraved serial number is a mystery.

Photo Credit Cyclingeezer
I have seen this in other pictures of the Marlboro/Fuji folder where the paint has faded. It looks like the red just disappeared. Nothing left of the red once it has oxidized. The paint on my frame is intact, having been stored in a shed presumably out of direct light. The translucent red over white looks good when it is in good condition.
Thank you Cyclingeezer for filling in some unknowns.
Fantastic Folding Fuji-MLCB #400
I may have to check out some of the other posts on this site.