Lincolns With Brown Lines? - Page 2

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Author	Replies: 22 / Views: 2,670	Page: of 2

Dave H Pillar of the Community United States 1436 Posts	Posted 02/05/2013 9:49 pm Toning is different than the improperly mixed planchet. The woodie effect is caused by the alloys in the planchet not being mixed completly/thoroughly when the planchet is being made. The metals being of different compositions, show as streaks on the planchet. Toning occurs when outside environmental conditions react w/ the planchet, which actually causes the metal to oxidize... The three main components of toning is heat (temp.) humidity (wetness) and handling (being left in those conditions long enough for the metal to begin toning). Here's another of my coins that has the wood-grained effect Report this Post to the Staff
sab3927 Valued Member United States 163 Posts	Posted 02/06/2013 4:59 pm Thanks for replying Dave. So let me get this straight. The improperly mixed alloys oxidize differently creating the grain effect of a woodie? Report this Post to the Staff
Dave H Pillar of the Community United States 1436 Posts	Posted 02/06/2013 10:18 pm The different metals that are combined to make the planchets have different chemical compositions & different color/appearance... When the planchets are rolled & punched, the pressure exerted "stretches" the metals, causing the difference in appearance. And yes, I believe the different metals would tone a different color Report this Post to the Staff
sab3927 Valued Member United States 163 Posts	Posted 02/07/2013 12:13 pm Got it! Thanks Dave. Report this Post to the Staff
52Raymo Pillar of the Community United States 8529 Posts	Posted 02/07/2013 1:07 pm Dave your Indian looks more like its stained than a woody, IMO. Oregon coin geek.....* GO BEAVS ! ! ! * Report this Post to the Staff
sab3927 Valued Member United States 163 Posts	Posted 02/07/2013 2:37 pm Dave, check out this 1945 with banding on the obverse. Is this a woodie? Report this Post to the Staff
Dave H Pillar of the Community United States 1436 Posts	Posted 02/07/2013 2:49 pm It looks like it might be. The banding on some coins is much more obvious than others. 52Raymo... in-hand, under magnification, the streaks look like like improperly mixed alloy, but the largest on the obverse has a purple tone to it... Report this Post to the Staff
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