Irish 1990 error coin me thinks ?

Ok so its not an ameriacan coin but at least its not My usual GB rubbish HAHA. 1990 Ireland (Gods own country) £1 coin with doubling on obverse & reverse.
Im of Irish descent and never really looked at these coins but the edge details tasty.
opinions please I think its a keeper, and apologies Iphone pics again !!

 

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ameriacan ??? oops late night I meant American

 

Could be deterioration doubling. Not Doubled Die variety.

 

deterioration doubling ? yet more numismatic phrases for me to research cheers.
Its going in the collection anyway cos its from Gods own country and has some flaws like me ha.
Thanks Paddyman

 

I concur machine doubling die deteration nice Punt a specimen i haven't had in my Irish coins. I do have a nice 39 floirin sitting next to me now.

 

Here you go a quick snap shot.