Up for the sake vintage or antique silver or silver plate music box. It’s has two marks “FOE” and “AKKA”. I have no idea what is means It has also one more mark “J13″. When you open the box, music start playing This music runs on spring And there is a switch at the back to tight the spring. The weight of the box 497 grams Size 6.5X4.5X1.5 inches.