I bought this used, and I'd like to get a guess of how old it is. (I'm thinking late '80s). It rides wonderfully, and is fabulously light. The only words on the frame are "Fuji America," which I always thought was the full name of Fuji's US operations and not the name of a bike, but apparently this is one of their old "America" touring bikes. It has Raleigh derailleurs (something tells me they weren't standard), and bar-end shifters.

Full bike:


The only name on the bike:


The tubing sticker:


So how old might this be?