Lincoln Memorial Cent Brockage Error

Maybe this with help you a bit.
https://www.error-ref.com/split_plan_after/

EDIT: This site even has more and better info: https://www.coinworld.com/news/us-c...nghouse.html

"Split Planchets can occur when weaknesses within the planchet itself are exposed by the force used to strike the coin with the dies, splitting the coin in two."

And that would obviously reduce the weight by around half also which your coin has.

Thanks Marve65. I read both links and I did other reading by searching for split planchet on this site. I'll have to get out my microscope next week and take a closer look at the surface of this coin. Want to see those striations. My photo was not the best. Had a hard time focusing since my setup was too flimsy and shaky.

I have seen wire breaks caused by internal inclusions. Coins are made out of strip, which is out of my sphere. My old companies widest round edge flat wire is close to 0.375", but then it is very thin, like 0.005" thick. It started out round.

Sorry for the spam but here's a link to an older post describing a similar coin- https://goccf.com/t/418765&SearchTe...plit,uniface

Note that this could have been a split or rolled thin planchet. If it was split the striated side could have been die struck and smoothed it out.

Personally, fried spam is quite good for breakfast on a cold fall morning in a Wyoming forest...

So, a brockage error is where a struck coin sticks to one of the dies and strikes the next planchet coming through, correct? The weight of the brockage error is within the tolerance for a correctly struck coin. Correct?

This explains why my coin does not show the brockage error. Correct?

My coin should show a reversed image of the reverse if it is a splint planchet. Correct? Its hard for me to make out what it looks like from the photo. I have to get out my microscope to look, but I don't have any way to make a microphotograph here. Maybe I could at my old place of work-I'll have to ask.

This might make it easier to understand. "Struck Coin" is redundant, you either have a planchet (unstruck) or a coin (struck). A brockage error can happen on any planchet (thin, split, clipped, or standard) so weight isn't an indicator. It doesn't need to stick to the dies either though that is a common way to get brockages. This coin, which was either a split or thin planchet, was fed into the press with another planchet and was struck. Therefore it is uniface (only one side die struck). The design on the obverse is a bleed through of the reverse strike.

There is lots of info on Error-ref.com to read through and it is where we get most of our error information: https://www.error-ref.com/?s=brockage

Very nice error!

Thanks to all that have answered so far. I went to the company I retired from yesterday and was not able to use the microscope there to take photos. It is currently out of commission. Same for the XRF where I was hoping to confirm the alloy of this coin and of a Civil War Token I have.