Caterpillar for ID, please

Caterpillar for ID, please

Observation - Caterpillar for ID, please. Description: Can anyone offer an ID, please, for this caterpillar eating a nettle leaf? I've unrolled the leaf a little way to show the caterpillar better.

Can anyone offer an ID, please, for this caterpillar eating a nettle leaf? I've unrolled the leaf a little way to show the caterpillar better.