This old amp has a chrome plated steel control panel that is stamped and then some kind of ink is put into the depressions for letters, graphics patterns, etc in the depressions. Most of the ink is worn away. Does anyone here know how that is done and what kind of ink to use to restore the graphics to the front panel? Thanks, Mark -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist