1988 D Cent w/damage at MM

1988 D Cent with apparent defect at mint mark. Is it lamination or inclusion? Any ideas?

 

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yup, zinc rot...it's a burst plating blister..

 

Thanks Ken. I thought it might be something like that but had never seen it that bad. Appreciate the feedback.

 

your welcome, i've seen zincolns covered with spots like that, the mint mark is notorious for it as the plating splits slightly from the pressure of the strike, its all downhill from there as environmental contaminants attack the zinc core...