Strike-through or Planchet Flaw?

The coin is a 1966 South Africa 1 cent. The question I have is whether this could be something that was an inclusion in the planchet or if it is an embedded scrap that happened at the time of striking. Does the "gutter" around the scrap indicate that it is the latter?

 

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As far as I can tell. Looks as if it's metal lamination flaw. -O)

 

It's not like any lamination I have ever seen. Perhaps the photos don't do it justice.

 

Same here.

I'd like to see it under higher power, and see the metal flow.

 

I don't have a higher power to use (bottom two photos at 30x). The color difference does not come out well in the photos, but the strip is more coppery than the darker rest of the coin. I don't think a lamination would be that way.

 

My guess is it is just Post Mint Damage caused by something scratching it.
Just my opinion that's not worth that much in this case

 

I don't think it is PMD. Note where both lines cross the top of the head. If it had been PMD, it would have damaged that line along the top of the head. It looks like a strikethrough to me.

Chris

 

I also looked at the lines where the field hit the head. They seemed to be like the scratching device was at an angle leaning towards the bottom of the coin and the extra depth of the head blocked the device from scratching at that intersection becasuse of the angle.
Look at the extra depth of the scratch in the head which leads me to this even more.
But I will concede that mine is just a guess

 

If it had been PMD, there would still be evidence, no matter how slight, of damage to the line along the head caused by the tool or whatever caused the gouges when it crossed. It wouldn't just come to that point, lift up and come back down once it passed.

Also there is no evidence of metal displacement along the supposed gouges. If it had been PMD, you would see the "crater effect" along the edge. The marks are consistent with a strikethrough where the surface of the die impresses the foreign material into the face of the planchet. Metal flow allows the displaced metal to flow into another area of the planchet.

Chris

 

Probably struck thru a piece of peeled lamination that feel off another coin during the coining operation. I would rule out pmd...

 

I think its struck thru a detached lamination from another coin, as Abe suggested. I have a couple of them and I see the same thing when I look at yours.