Antique Erindring 830 silver collar button stud. This is likely Danish or Norwegian due to Erindring meaning Memory in those languages. The button is being sold as is. The bottom is heavily dented and has caused a crack to form in the silver. The top is lightly scratched. It is marked 830 on the back. Total weight is 1.77 grams. The top of the button measures 11/16”x11/16”. It measures ~1/4” tall