Alps766c

As an Ex toolmaker I can answer this question in some detail I have looked at the rim and it is clear to me the coin has been pressed, as you can clearly see under a magnifying glass 1/3 shine and 2/3 rip or tear (Its an easy way to see if the punch and die clearances are correct) If you require a disk/blank then the die is made to the correct size and clearance placed on the punch IE a 10mm disk/bland made from 2.00mm thick material at 10% clearance would have a 10.00mm dia and a 9.60mm punch (10% of 2.00mm = 0.20mm a side clearance)then you would look at the edge to check the cut(shine) and break(tear) relationship. 1/3 shine and 2/3 tear shows correct clearance. It is my opinion that this coin came of the press in this condition (I know lots about toolmaking but nothing about cions) Hope I have not bored you with pressing / stamping details Thanks for your comments

Thanks for your coments Please find attached photo's of coin

I have a 2009, 20p coin and in all respects it looks correct (Pressing detail and Heads / Tails alignment) apart from the fact that it is round. I am fully aware that the coin should have 7 sides. How could I determine if this is a incorrectly pressed coin or a fake? Either way would this coin be worth selling or just put it in the coffee machine at work