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Author Message   Prasanna Tinkerer Username: Prasanna Post Number: 14 Registered: 10-2009 Rating: N/A Votes: 0 Posted on Saturday, October 24, 2009 - 09:30 am:    Household Ammonia will remove the acidic etching and greening. It would also brighten the brass. You could then polish it with Brasso and apply clear acrylic varnish or clear nail polish on it. It will stay bright for long. I do that when I renew old Fountain pen clips that are made of brass. Regards, sp.