Thanks CaptBrian1 for your recent Journal on "Understanding Toned Coins". To continue the thread that you started I would like to emphasize that spectacular toning is not limited to Silver coins. Bronze and Copper coins can also develop spectacular toning.
While both NGC and PCGS give preference in their Registries for Bronze coins with the coveted Red (RD) designation I have seen many beautifully toned Red Brown (RB) coins with eye appeal that blows away full Red specimens of the same grade. If you doubt this just peruse the Toned Coin section of the NGC Custom Registry Sets.
I have several examples of beautifully toned Bronze U.S. Philippine Proof coins in my Registry Sets. Two excellent examples are found in my U.S. Philippines Half Centavo Registry Set. http://coins.www.collectors-society.com/registry/coins/SetListing.aspx?PeopleSetID=77008&Ranking=all The 1904 Half Centavo (PCGS PR66RB) has an attractive Deep Cherry obverse and Hunter Orange reverse. The 1908 Half Centavo (PCGS PR67RB) has gorgeous Rainbow Toning on both obverse and reverse.
Another attractively toned Bronze Proof my 1903 U.S. Philippines Half Centavo (PCGS PR65) Ex. Dr. Greg Pineda is pictured below.
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