Hello, Can anyone explain the marking on the attached photo of a norwegian dinner fork. I know it's 830 S, but what confuses me is the X symbol. What/who does that stand for? [img] [img]https://i.postimg.cc/xkrvswq1/IMG-0882.png[/img] [/img] [img] [img]https://i.postimg.cc/p5dzhxcq/IMG-0880.jpg[/img...