Wow, that must have been a very nice bike before it was thrown out along time ago. Too bad some of it had corroded away for good. You might want to show it to a frame builder to see if it can still be restored and if the brand has significant history. It might be too far gone looking, but its still good to find out. You can always hang it as really nice vintage cycling "wall art" in your house if it can't be restored anymore.
I wonder what stories that old bike could have said if it can talk.....

Chombi