Flan Fault?

[Sleepy 107]

Has anyone seen coins crack like this before, they look like they are de-laminating , only effects one side.

And thanks Non for showing me how to stich 2 photos together

[Nordle11 564]

Yeah got a few of them. Lamination errors like you say.

I can't remember the exact cause, I think it's impurities within the metal (being one of them) and I imagine the striking process has something to say about it too.

I like how the farthing is now growing hair  

[Nordle11 564]

Here's a few of mine, although most of the lamination has come off already, some do retain it (like yours) if it's not been manhandled too much.

[Leo 91]

Do you think that the scattered dents in this florin are the result of flan impurities, or is it more likely to be mechanical abrasion? (a cart having run over it)

Either way it certainly detracts

[mrbadexample 1,006]

To me it looks like some sort of corrosion, perhaps once treated?

[Paulus 1,975]

Whatever the cause it looks very battered, and to be avoided!