This is a sweet little tin button, from Norway originally. It was on my very first second-hand buy, a hand knitted cardigan a la Setesdal. I was 16, on my own in the b-i-g city of Göteborg (not big at all...) and I had seen the film Annie Hall... I don't know why, but I believed a sweater like that one would complete the style. I loved the sweater but all that remain are the buttons.