Thank you for viewing. This is a genuine E.LEITZ (now Leica) soft release button, model "SOREI." It's a rare accessory known for use with Barnack Leicas. By attaching it to the shutter button, the shutter feel becomes softer, which also helps prevent camera shake. This item was used by my grandfather, and the box it was stored in appears to be from a different item. Condition: Overall, there are scratches, marks, and signs of use (please check the photos). I have confirmed that it can be attached to a camera and is functional. Please purchase only if you understand that this is a used item. This item is in a condition that can be used without any problems by those who understand vintage items.