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Posting Jefferson nickels in order by date
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<p>[QUOTE="RonSanderson, post: 3313898, member: 77413"]<b>1991-P</b></p><p><br /></p><p><b>[ATTACH=full]877932[/ATTACH] </b></p><p><b><br /></b></p><p><b>[ATTACH=full]877931[/ATTACH]</b></p><p><b><br /></b></p><p><b><br /></b></p><p style="text-align: left"><span style="font-size: 16px"><font face="Verdana"><span style="color: rgb(20, 20, 20)">At first glance this looks like random pocket change. It seems to have thousands of hits, but after a close look at the photo, there are very few contact marks I see. I think the appearance is due not only to the large number of planchet flaws, but to the severe die wear everywhere and the weak lettering in LIBERTY. </span></font></span></p> <p style="text-align: left"><span style="font-size: 16px"><font face="Verdana"><span style="color: rgb(20, 20, 20)"><br /></span></font></span></p> <p style="text-align: left"><span style="font-size: 16px"><font face="Verdana"><span style="color: rgb(20, 20, 20)">Here is a closer look at these erosion lines at the left. Each strike of the dies forces metal from the edges of the blank towards the middle where there is a large void that must be filled to form the face. How many strikes does it take to create these huge furrows?</span></font></span></p> <p style="text-align: left"><span style="font-size: 16px"><font face="Verdana"><span style="color: rgb(20, 20, 20)"><br /></span></font></span></p> <p style="text-align: left"><span style="font-size: 16px"><font face="Verdana"><span style="color: rgb(20, 20, 20)">The face is really poorly struck on a planchet that must have been totally covered with dings and dents. I will discuss this further below this picture.</span></font></span></p> <p style="text-align: left"><span style="font-size: 16px"><font face="Verdana"><span style="color: rgb(20, 20, 20)"><br /></span></font></span></p><p><b>[ATTACH=full]877934[/ATTACH]</b></p><p><b><br /></b></p><p>Here is an overview and a detail crop of an unstruck planchet. (It's in a 2x2 so there's reflection off the plastic.) These show what the die has to start with before it hits the blank. If the hard nickel cannot be forced up fully into every recess of the die, then these marks remain on the coin, although somewhat flattened and distorted due to the metal flow. In the image above, Jefferson's face is a roadmap of lines and marks that were not hammered out of the raw metal.</p><p>[ATTACH=full]877937[/ATTACH]</p><p><br /></p><p>Detail of the unstruck planchet - 100% crop of my camera's original image. It's at the same scale as the crop of the obverse shown above.</p><p>[ATTACH=full]877936[/ATTACH][/QUOTE]</p><p><br /></p>
[QUOTE="RonSanderson, post: 3313898, member: 77413"][B]1991-P[/B] [B][ATTACH=full]877932[/ATTACH] [ATTACH=full]877931[/ATTACH] [/B] [LEFT][SIZE=16px][FONT=Verdana][COLOR=rgb(20, 20, 20)]At first glance this looks like random pocket change. It seems to have thousands of hits, but after a close look at the photo, there are very few contact marks I see. I think the appearance is due not only to the large number of planchet flaws, but to the severe die wear everywhere and the weak lettering in LIBERTY. Here is a closer look at these erosion lines at the left. Each strike of the dies forces metal from the edges of the blank towards the middle where there is a large void that must be filled to form the face. How many strikes does it take to create these huge furrows? The face is really poorly struck on a planchet that must have been totally covered with dings and dents. I will discuss this further below this picture. [/COLOR][/FONT][/SIZE][/LEFT] [B][ATTACH=full]877934[/ATTACH] [/B] Here is an overview and a detail crop of an unstruck planchet. (It's in a 2x2 so there's reflection off the plastic.) These show what the die has to start with before it hits the blank. If the hard nickel cannot be forced up fully into every recess of the die, then these marks remain on the coin, although somewhat flattened and distorted due to the metal flow. In the image above, Jefferson's face is a roadmap of lines and marks that were not hammered out of the raw metal. [ATTACH=full]877937[/ATTACH] Detail of the unstruck planchet - 100% crop of my camera's original image. It's at the same scale as the crop of the obverse shown above. [ATTACH=full]877936[/ATTACH][/QUOTE]
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Posting Jefferson nickels in order by date
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