| Author |
 Replies: 21 / Views: 1,617 |
Page 2 of 2
|
|
|
|
Pillar of the Community
 United States
5787 Posts |
Love it. Congrats on a great pick.
Nice images of the copper plating before the missing metal and not damaged after the plating process.
Words of encouragement are one of the major food groups.
We need to consume them regularly to thrive and grow.
|
|
Moderator
United States
189673 Posts |
Nice example!  |
|
Pillar of the Community
United States
3535 Posts |
|
|
Pillar of the Community
United States
7174 Posts |
Sometimes you have to wade through the crap to find a good one. Nice one. I don't think I've seen a ragged planchet on a zinc before.
|
|
Pillar of the Community
United States
5787 Posts |
I also find it funny this legitimate error sold for less than most of the PSD coins they were offering.  Words of encouragement are one of the major food groups.
We need to consume them regularly to thrive and grow.
Edited by Petespockets55
06/19/2024 3:58 pm
|
|
Valued Member
 United States
426 Posts |
Quote:. I also find it funny this legitimate error sold for less than most of the PSD coins they were offering. I thought the same lol a real error coin and then PMD damage coin is hundreds. I wanted to do a best offer of 5 or 10 bucks lol but I didn't want it to get scooped up by someone else. So I got it for a decent price still. |
|
Pillar of the Community
United States
2860 Posts |
Congrats.... nice score, nice error!
|
|
Pillar of the Community
United States
2775 Posts |
Nice example as well as description on a copper plated zinc era cent. As strange as it might sound I remembered a past article from a great master, I did a google search for "Ken Potter" with the phrase " Blow Hole". Thanks, Doug. http://goccf.com/t/395759 |
|
Pillar of the Community
 United States
8800 Posts |
|
|
Pillar of the Community
United States
2775 Posts |
Quote:
Blow holes I think typically encompass the interior of the coin, not the edge. Why? The punch pattern should not deviate. It punches blanks start to finish in a set pattern. If the strip has a Blow Hole in it, it could fall / align up in the center or same on the edge. Thanks, Doug. |
|
Pillar of the Community
United States
2739 Posts |
It's a "ragged fissure". It marks where the zinc of the coin metal strip pulled apart from tensile stress.
Error coin writer and researcher.
|
|
Pillar of the Community
United States
5787 Posts |
Quote:
It's a "ragged fissure". It marks where the zinc of the coin metal strip pulled apart from tensile stress. And on this coin, that "pulling apart" happened before the plating process, correct? Words of encouragement are one of the major food groups.
We need to consume them regularly to thrive and grow.
|
|
Pillar of the Community
United States
2739 Posts |
Yes, the raw zinc strip pulled apart. The planchets are plated much later in the production process.
Error coin writer and researcher.
|
|
Pillar of the Community
United States
5787 Posts |
Thanks for the confirmation, Mike.
Also, do you know of any available resource for the modern Lincoln planchet production (before they are sent to the mint)?
Is the proto-rim added before or after the plating process?
Is the proto-rim still added by an upturning machine or might it be applied by striking the type 1 planchet with "forming dies"?
I've often wondered if zinc was too brittle to form with an upturning machine and if anyone knows how the problem of split plating seems to have been resolved. Split plating doesn't seem to be as prolific as it once was.
Maybe I should have sent these questions in an email, but I thought others might benefit from any insight you can share.
Thanks.
Words of encouragement are one of the major food groups.
We need to consume them regularly to thrive and grow.
|
|
Pillar of the Community
United States
2739 Posts |
The planchet is upset before plating in a conventional upsetting mill. This, and the plating, is all done by the outside contractor.
Error coin writer and researcher.
Edited by mikediamond
06/22/2024 2:01 pm
|
|
Page 2 of 2
|
Replies: 21 / Views: 1,617 |
Page 2 of 2
|
First Page
Posted 06/19/2024 10:01 am
