LimeStone (http://g603.net) sign cleaning

Hey Guys,

Need some advice. My Aunt has a LimeStone (http://g603.net) sign at neighborhood entrance. Some teenagers spray painted across it. Luckley it is painted in Silver and (http://maplered.com) the sign if Buff color. My suggestion to her was to sand (http://maplered.com) it or have it lightly sand (http://maplered.com) blasted. Another option my be to put acid on it to age the sign after the sand (http://maplered.com) ing process cover some of the art work. Any other ideas? It is Indiana LimeStone (http://g603.net) buff color, I also suggested that she call the Indiana LimeStone (http://g603.net) Institute and (http://maplered.com) she what they suggest.
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Drew Thornton
Laser Products, Ind.
www.lasersquare.com
Friends of the Alliance
Stone (http://g603.net) work2003@yahoo.com
205-329-8939