Badly Pressed 2009, 20p or Fake

[Alps766c]

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

[£400 for a Penny ?]

Any chance of a picture ?

[Peckris]

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

One thing you can be 100% sure of : it's not a fake, unless created by someone mad or totally stupid

Edited March 28, 2010 by Peckris

[Alps766c]

Thanks for your coments

Please find attached photo's of coin

[Alps766c]

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

[Alps766c]

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

[£400 for a Penny ?]

Hmm,

I'm thinking that somebody was bore and has filed the corners ?

What does the rim look like, any evidence of this ?

[Alps766c]

Hmm,

I'm thinking that somebody was bore and has filed the corners ?

What does the rim look like, any evidence of this ?

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

[£400 for a Penny ?]

No, learn something every day.

It's obviously very difficult to tell without seeing it. It might have some value to someone if it can be proven that it's a genuine mint mistake/oddity rather than a coin which has been machined in some way. The only sure fire way to make progress is to show it to a dealer and ask his opinion (I almost typed his/her then and then I thought is there a single female dealer in the hobby ? Don't believe I've met one..)

Heres a link to the BNTA website, from which you ought to be able to find a dealer close to you.

http://www.bnta.net/index.php

Hope that helps, best of luck.

[DaveG38]

No, learn something every day.

It's obviously very difficult to tell without seeing it. It might have some value to someone if it can be proven that it's a genuine mint mistake/oddity rather than a coin which has been machined in some way. The only sure fire way to make progress is to show it to a dealer and ask his opinion (I almost typed his/her then and then I thought is there a single female dealer in the hobby ? Don't believe I've met one..)

Heres a link to the BNTA website, from which you ought to be able to find a dealer close to you.

http://www.bnta.net/index.php

Hope that helps, best of luck.

£400 for a Penny

The obvious lady dealer is Curlietailz, who is, I seem to remember, Sue Smith from Cleveland, trading as 'Ye Olde banknote Shoppe'.

[£400 for a Penny ?]

The obvious lady dealer is Curlietailz, who is, I seem to remember, Sue Smith from Cleveland, trading as 'Ye Olde banknote Shoppe'.

Of course. And, to make matters worse, I've bought stuff of her in the past as well.

Which rather makes me look a donkey doesn't it.

Bray.

[declanwmagee]

The obvious lady dealer is Curlietailz, who is, I seem to remember, Sue Smith from Cleveland, trading as 'Ye Olde banknote Shoppe'.

Of course. And, to make matters worse, I've bought stuff of her in the past as well.

Which rather makes me look a donkey doesn't it.

Bray.

Julie Sutton?