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<p>[QUOTE=&quot;WingedLiberty, post: 2124193, member: 26030&quot;]What I find most interesting with toned copper is how proof coinage of the early 1960&#039;s (say from 1960 through 1964, but peaking in 1961) seem to exhibit more vivid colorful rainbow toning inside sealed original cello packs than any other era (what I have seen at least). </p><p><br /></p><p>I can go into almost any bricks and mortar coin dealership and ask to pick through their 1961 cello pack proof sets and find some brilliantly toned 1961 Proof Lincolns.&nbsp; I know that there was nobody in the back of that dealership trying to artificially tone these since ALL these sets (the untoned ones and the few with toned coins) are all being sold at the same low price and not being marketed for profit (typical price is around $25 for the entire 90% silver proof set). </p><p><br /></p><p>So there is something about proofs in the early 1960&#039;s ... either by the way they were manufactured or post processed at the mint before sealing ... or perhaps in their copper alloy content (maybe there were trace impurities in the zinc copper alloy in the early 1960&#039;s? Not sure) that caused (some) proof coinage of that era to tone brilliantly inside the mint sealed cello.&nbsp; I am 100% absolutely convinced these coins are all NT (naturally toned) since I see this occur over and over.</p><p><br /></p><p>Here is a 1961 Proof Set that I bought from my local bricks and mortar dealership for $25.&nbsp; And underneath the PCGS TrueView photo (PCGS PR67RB) of that same Lincoln after I cut it out of the cello and submitted it.</p><p><br /></p><p><img src="https://mindstar.com/cointalk_photos/1961ProofSet.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p><img src="https://mindstar.com/cointalk_photos/TVBlack_1961_Linc_PR67RB.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p><br /></p><p>Some people might look at this coin and say &quot;how can that color happen naturally&quot; -- but I saw this coin from cello pack at my local dealer who was selling it along with hundreds of other sets with untoned red lincolns.</p><p><br /></p><p>Next is a 1962 intact OGP cello pack proof set that I bought off ebay for $25 (which is a $0 premium over a &quot;dime a dozen&quot; untoned set) -- and when I cut out the Lincoln and submitted it to PCGS it came back PR68BN (one of only three (I think) PCGS PR68BN Lincolns known to exist for the entire Lincoln series).</p><p><br /></p><p><img src="https://mindstar.com/cointalk_photos/1962_ProofSet_IP_O1.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p><img src="https://mindstar.com/cointalk_photos/TVBlack_1962Linc_PR68BN.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p><img src="https://mindstar.com/cointalk_photos/1962_SlabO.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p><br /></p><p>So sometimes the wildest looking colorful copper coins can be completely NT (naturally toned).&nbsp; </p><p><br /></p><p>I know about these two particularly because I saw exactly how they were marketed and sold (for $0 premium) and hardly even a mention of the toned Lincoln -- and the state of the OGP mint cello pack (which were pristine with no pin holes).</p><p><br /></p><p>Here are a few more wildly colorful 1961 Proof Lincolns.&nbsp; I think the grades were PCGS PR67BN, PR67BN, and PR66BN.</p><p><img src="https://mindstar.com/cointalk_photos/TVBlack_1961_PR67BN_purp.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p><img src="https://mindstar.com/cointalk_photos/TVBlack_1961_PR67RB_char.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p><img src="https://mindstar.com/cointalk_photos/TVBlack_1961_Linc_Blue.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p><br /></p><p>This also extends to Jefferson Proofs -- where monster toned Jeffs in the 1960-1964 era are almost common (well not quite common, but more common that other dates).&nbsp; Since Nickels are 75% copper, I guess this makes sense -- so whatever process affected the Lincolns in this era also in some cases extended to the Jeffersons.</p><p><br /></p><p><img src="https://mindstar.com/cointalk_photos/TVBlack_1961Jeff_PR67.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" />[/QUOTE]</p><p><br /></p>

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