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...at a guess, it appears to be a frame that was originally fully chromed, but only polished in the places where it was not going to be painted. Then, somewhere before you got it, someone stripped off the paint, and stuck those decals on it. This would explain all the rougher looking places in the chroing, on the tubes near the lugs and bottom bracket. That's kind of what bikes look like when someone does this. It's not a big deal, but they look better when you mask off the polished portions , like the stays and lugs, and repaint.
All of this is guesswork on my part. But I have done some similar restorations. Still, I have no idea if it is or is not a Falcon.
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