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Message:: [QUOTE="Tamaracian, post: 8127097, member: 23122"][USER=89652]@Rocksprings[/USER]   As others have stated, it is not possible to "unpolish" a coin; for a coin that has been cleaned by chemical means or with mild abrasive it is possible to have it retone and look more acceptable, but to the trained eye, it will almost always be detectable as having been cleaned or polished. For a bronze coin (95% Copper, 5% Tin + Zinc) such as your 1877 IHC, there are commercial products that will tone it to a shade of brown.  I'm not going to mention a particular one since I have not personally used them; if you do a Google search for "what can be used to tone a bronze coin" you will find several products mentioned.  Also, searching under "coin supplies" will return Wizard Coin Supply and several others that carry products for both "cleaning or dipping" and for "preservation". Practicing on a common bronze cent ( has to be mostly RED) that you have first "cleaned" (if you don't have a commercial dip you can use the juice of a lemon) should give you a good idea of the final result after treatment with the commercial toning product.  A photo of your coin would have been helpful for the Community to suggest a course of action, or not, if too far altered.[/QUOTE]