2013-D 1c Shield Penny horizontal stripes?
USCoinHunter
Posts: 23 ✭
What are these Horizontal stripes on both Obv and Rev, you can see it on Lincolns forehead, face, it runs throughout the Obv and on the rev too!. Thanks
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Probably roller marks
roller marks?, really?
It’s in the realm of possibility
Before plating, zinc blanks are rolled and punched.
https://www.coinworld.com/numismatic/coin-world-collector-basics-unplated-planchet-error-coins-numismatics-coin-collecting-hobby.html
Yes, they look like roller marks... the plating tends to accentuate the appearance of the lines. Cheers, RickO
"Look Like"? ... Lol!
those are not roller marks, it is a alloy mix error!.. improper alloy mix (IAM)
So you come on here just to troll and be a know it all. Why ask when you already "know" the answer?
10-4,
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My registry sets
Please explain just how an alloy mix error could create multiples of straight parallel lines? Even if the alloy mix created a softer or more susceptible to damage metal, would not something still have to create the lines, such as a roller?
Jim
When a man who is honestly mistaken hears the truth, he will either quit being mistaken or cease to be honest....Abraham Lincoln
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Improper alloy? What alloy? The core is Zn, the plating is Cu. There are no metal alloys in this coin.
Spend some time looking at more plated cents. These parallel lines are common, especially on cents from the 80s and 90s. It's nothing more than process variability from rolling and/or plating. Not an error of any kind (and certainly not an improper alloy)
**Improper Alloy Mix
PART V. Planchet Errors:
Improper Alloy Mix
**
Definition: The term “improper alloy mix” can apply to two related errors. The constituent metals of a solid-alloy coin can be well-mixed but in the wrong proportions. In the case of a copper-alloy cent with too much tin or zinc, this will result in a brassy color. Alternatively, the constituent metals can be in the right proportions but poorly mixed. This will leave the coin with light and dark bands. Of course, the two mistakes can occur together.
https://www.error-ref.com/improper-alloy-mix/
You Still seem to be confused. The cent contains 2 homogenous components, the Zn core and Cu plating. It can't be improperly mixed if nothing is mixed
I recommend spending some additional time learning and understanding the minting process.
Halftime entertainment?
What he said.
OP is reading a description that applies to alloys, which does not apply to zinc cents.
Alloy is a mix of metals
The core is pure zinc
The plating is pure copper
that image is taken from this thread:
https://forums.collectors.com/discussion/1071108/1909-s-vdb-woodgrain-toning-a-negative-or-positive
notice the ragged edges to the striping. that is how an improper alloy mix will look.
Nice IAM image!!
What do you think about this one?..
Looks like a counting machine skid mark under all that green. But you tell us what you think it is?
Hoard the keys.