Few minutes back one of my fb friend, asked me to find a coin on Numista. She provided me another website link.
That website informed me, it's a poland coin KM 128. 6 groschen. As I don't know much about antique coins, at first I try with POLAND it was not there. Then with POLISH-LITHUANIAN COMMONWEALTH but faild to find it there then with LITHUANIA. But, no good news.
At last I searched on google with '6 groschen 1674'. And got a link to Numista. This link's coin has no image, a Polish Lithuanian commonwealth coin, little details but the actual KM number. But, the thing surprised me it written on top "this page is not published yet".....