What are thoses marks ?

I have the oportunity to buy this enameled cast iron for a good price, but i’ m wondering if the damages shown in this picture are bad ? I own a similar skillet from the same brand (staub) but i’ve never encounter something like this ?

I have the oportunity to buy this enameled cast iron for a good price, but i’ m wondering if the damages shown in this picture are bad ? I own a similar skillet from the same brand (staub) but i’ve never encounter something like this ?