Odd 20p

[Tony 4]

Just wondering if anyone can help trying to figure out of mint report or just worm 

[Chris Perkins]

20 hours ago, Tony 4 said:

Just wondering if anyone can help trying to figure out of mint report or just worm 

 

If mint 'error' or just worn?

I think it's probably been weakly struck with the result that some detail is not properly formed.

[Rob]

It will either be the dies blocked with grease, or more likely given the weakness to both sides, a weak strike or a non-uniform/standard thickness flan. Weight?

[Tony 4]

Hi sorry does that mean it’s a mint error 

[Rob]

40 minutes ago, Tony 4 said:

Hi sorry does that mean it’s a mint error 

Technically yes, but nothing out the ordinary. If a die is filled with grease (because they are stored that way before use to stop oxidation), then it won't compress when striking coins leading to weak or missing detail. This happens frequently as they use a lot of dies.

If the flan is slightly thinner at one point, then it likely means it has been cut from the edge of a sheet, which depending on the amount of metal left for the last sheet say in the batch, could simply run out of metal to use. The sheets for making flans will be squeezed between 2 rollers to get the right thickness, which eventually must result in insufficient metal to fill the gap.

It has curiosity value for many, but is a feature that's regularly seen. Someone might pay you a pound or two for it plus postage. For added zeros, put it on ebay and say the decimal point wasn't struck up. I'm sure someone will fall for it.