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					Originally Posted by David Atkatz  How about removing a personalization from an Armstrong SP  (modern, and pretty common), and thereby doubling its value? | 
	
 I say go ahead and attempt to remove it if you want. There is no guarantee that it will come off totally and nicely. If it is ruined, you only have yourself to blame. If it looks better and it's for your collection, great. If you go to sell it, divulge  the "washing" and take great pics of the area in question (if not selling in person) and let the potential buyer(s) decide if they want it or not.