Drink Me Enamel Pin

It was all very well to say 'Drink me,' but the wise little Alice was not going to do that in a hurry. 'No, I'll look first,' she said, 'and see whether it's marked 'poison' or not;'…she had never forgotten that, if you drink from a bottle marked 'poison,' it is almost certain to disagree with you, sooner or later

approx 30mm x 20mm with metal backing