Zinc Plated Split planchet?

[GrumpyEd]

What I'm wondering now is if your coin could be an example of a layer of copper plating becoming detached in the upsetting mill (or elsewhere) from one blank

Someplace on here there is a thread with multiple zincolns that have little sections of the plating torn off of the upset part of the rim then struck through on the coins field. It was long ago, might be an archived thread by now.

[jfines69]

Nice images once again. You find some neat stuff!
Looks like the end of the peel extends down the rim on this one also. Any chance you lifted the peel in the field to see what's underneath? (I know, I know, its a zinc core. but still?)

It does extend down the rim... I did not lift the copper... Didn't want to break the coin

[jfines69]

Those are really interesting finds.
If I understand the planchet production correctly, zinc plated type 1 (before the rim) blanks are delivered to the mint and the mint places them in an upsetting mill which creates the rim on the planchet.
What I'm wondering now is if your coin could be an example of a layer of copper plating becoming detached in the upsetting mill (or elsewhere) from one blank, through the process of adding the rim, and be "stuck" or bonded to another through the same "upsetting mill" process. (If I understand correctly the current accepted belief is that plated cents cannot have lamination issues but the plating can crack.)
Here is a link https://i.ytimg.com/vi/TCI16hXpRQk/maxresdefault.jpg showing an image of a bin at the Philly mint with what look to be blanks before the rim is applied. Below the bin and to the left are what appears to be remnants/pieces of something (copper plating?) on the table. The non-copper color of the pieces seem to match the face of the blanks in the bin.
Here is a Youtube video https://www.youtube.com/watch?v=TCI16hXpRQk that the above still comes from. At about the 25 second point, it shows the rim appearing on the blank (I think this is computer graphics at this portion.). Pretty neat.
Sometimes my peepers see "stuff" that my mind tries to answer and sometimes it's vice versa.
Once again thanks for looking and adding any insight, Cliff

If memory serves me correctly the planchets are delivered ready to strike... The upset mill is done prior to the plating to prevent any peeling due to the upset process!!!


Added - I am not sure when that video was actually made but it says published in Feb. 2016... Interesting!!!

[VAB2013]

Someplace on here there is a thread with multiple zincolns that have little sections of the plating torn off of the upset part of the rim then struck through on the coins field. It was long ago, might be an archived thread by now.

Ed, I remember this and I think Roller did a thread about it. They were Shield cents, I'm thinking 2013 or 2014's. If I am right and it was Roller, maybe he will chime in!

[Petespockets55]

If memory serves me correctly the planchets are delivered ready to strike... The upset mill is done prior to the plating to prevent any peeling due to the upset process!!!


Added - I am not sure when that video was actually made but it says published in Feb. 2016... Interesting!!!

Ed and Jim, thanks for taking the time to reply and add to my limited knowledge.
I thought the info I've read says the upsetting mill is at the mint and the video above is on the mint website.
With the interesting struck throughs produced (thread, cloth, metal, etc) it just seems plausible that extra copper could become attached to the planchet before the strike. And the upsetting mill with its friction and pressure producing the rim could be the means since both of your examples and Larry's occur in proximity to the rim.

[jfines69]

Ed and Jim, thanks for taking the time to reply and add to my limited knowledge.
I thought the info I've read says the upsetting mill is at the mint and the video above is on the mint website.
With the interesting struck throughs produced (thread, cloth, metal, etc) it just seems plausible that extra copper could become attached to the planchet before the strike. And the upsetting mill with its friction and pressure producing the rim could be the means since both of your examples and Larry's occur in proximity to the rim.

Hope I helped and didn't confuse... Like I said about the upset mill and the plated Lincolns - I think they are strike ready when received at the mint... That will need a little more research!!!

[jfines69]

Thank you Jim for the link. I forgot about that thread.
And the link you provide in it to the one you found is nice also even though it didn't get much notice at the time.
The link you provided here http://www.lincolncentforum.com/foru...=split+plating . has some nice images, as usual, especially #3 which shows shadowing like there is extra metal or peeling like you suggested in the title.
On the right side in image 4 Does the line extend over the rim and down the collar to the reverse ?

I have not found that coin yet... I am no filing genius

[Petespockets55]

I have not found that coin yet... I am no filing genius

A lot here probably resemble that remark!!

[jfines69]

A lot here probably resemble that remark!!