Originally Posted by wayne z
If it has been spray painted, it is possible to carefully remove it with light solvents(lacquer thinner, acetone ect) and still retain the original paint and patina underneath. The antique bike restorers do this a lot.
goo-gone and Oops work good for spray paint. they are sold to get gum and sticker residue off of stuff, but works great on spraypaint. just get a rag wet with it, lay it down, wait a few minutes, and wipe it off.