British Half Penny George V (1920)

Hi,

I wondered if someone might be able to help with a query.  I am a long time lapsed British pre Decimal coin collector . I had a query about a

 George V 1920 Half Penny. 

There seems to a crack (not sure what to call it) running from D in DEI. It is probably damage I just wondered if anyone had any thoughts (I tried to find another example online but failed) ?

Apologies for the photo quality - I took it with an iphone and probably had a bit of an unsteady hand

Thank you in advance for you help

Richard

Looks like a lamination error in the planchet.

Looks to me like a planchet defect called a lamination.  Another example:

Many thanks rsirian1 for your message - really helpful 

Best Regards