Murray-built "Flightliner"-style bike; could've been badged as Higgins (many were), and '59 puts it right in the thick of flightliner production. Here's a pic of a clean example; not sure how original it is, but looks pretty close....... FWIW, the Higgins-badged bikes of this style were typically badged as "Flightliner"; identical frames wore different badges and were sometimes offered with different equipment. All were made by Murray, though. Those dropouts are a dead giveaway to indicate a Murray-built frame, and that is the traditional Murray front sprocket, too.
Yeah, they put a lot of different labels on those frames, but they're all from late 50s/early 60s, all made by Murray, and it seems to me that the ones badged "JC Higgins Flightliner" were the most common. It's a cool bike no matter what stickers it came with; whatcha gonna do with it?
It's already a rider, so I think I'll just tear it down, grease it up and ride it for a while. I'm sort of curious about the two-speed hub, I want to see how that handles. Maybe I'll try my hand at some pin striping.