Penny Cnut quatrefoil type

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Hello,
I have such a penny, can you tell me if it is a rare type? I couldn't find any information.
quatrefoil type, Nottingham, moneyer Bruninc.

Thank you

[Lackland]

Hello,

it is a rare coin. But because of the flan damage it‘s monetary worth is limited.
(If it is for sale I would pay 200 €.)

Kind regards,
Ulrich

Here is All I can find of Cnut/Nottingham:
https://emc.fitzmuseum.cam.ac.uk/advanc ... &emc-scbi=

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Thank you!