This is a very rare and highly collectible vintage model Bernina sewing 5-layer, Swiss army-style multitool made by Wenger that is no longer produced. 
The tool is in good cosmetic condition and all parts are present and in working order.
This would make a very special gift for a sewist. These multitools are hard to come by and a unique addition to the sewing box or room. Approximately 85mm in length.
Comes with its original instructions and presentation box, which includes a charming touch in the form of a coin representing "payment" for the blade, according to tradition/ superstition.