So, I have these knife rests, e.g.: https://i.ibb.co/tQ7tKQ6/s-l1600.jpg On one end of the base there is "12" stamped: https://i.ibb.co/dQxXXfv/smart.jpg Scouring the internet led me to believe that this most likely means these knife rests are 750/1000 silver from Germany. However, the hal...