Interesting error - how is this possible?

MadMuffin

This Norwegian coin belongs to a friend of mine. The type was struck on very bad flans and flawed coins are way more common than perfect specimens.

The interesting thing about this coin is that it seems to suffer from brockage, but even though fairly big parts of the flan are missing you can still se traces of the letters in the craters left by the missing parts. I haven't seen this before. Can anyone explan how this is possible? I have included a picture of the coin seen from the side where it is evident that a fairly big chunk of metal has gone missing.







Regards, Marcel

mnemtsas2

Just a regular planchet peel, there's usually some remnant of the struck design under the peel. Here's one I happened to image today that you can clearly see parts of the design in the peeled area:

lordmarcovan

Struck on a really wretched planchet, I guess?

It's neat. I'm not sure if it's particularly valuable as an error, but like you said, it's definitely interesting.

TwoKopeiki

Yup, looks like lamination. The reason you still see the design elements is due to the change in hardness when metal flows into devices during strike.

MadMuffin

Thanks! Couldn't have figured that out myself. It's strange, yet logical, that a coin is struck not just on the surface, but also deep inside.

@ lordmarcovan - no, a lamination such as this would make the coin less valuable. Errors are common on these coins. I have a 1 skilling from this period that is well struck, only lightly circulated and free from any major flaws - that's a scarce coin!

Regards, Marcel

lordmarcovan

Yes, that's what I said.

Said, "I'm not sure if it's particularly valuable as an error".

Cool, though.

960Coins

It can happen even on overstruck coins:

Gazza

If you look very carefully you can just see the lettering inside the split

1967 penny