JohnSol
Registered
 
		It was not uncommon to completely strip and disassemble some of the older brass "O" Gauge models.  I remember my brother using a small media blaster with pressure from an ordinary air compressor.  I'm not sure what the media was.  Perhaps it was glass at low pressure.  Maybe walnut shells.  I'll find out.
	
		
			
		
		
	
				
			 
	 
 
		