The Boreal Arrow 

Code BA20111102: Thin Open-Face Swiss Compass, c. 1920

This is a beautiful SWISS open face pocket compass. It has a brass case in excellent condition without dings or dents. It is marked SWISS on dial. Has the English design dial card, which is very similar to the Swiss Longines model. In full working order with transit lock on the side. Finds North easily. It is very thin and measures 3.9cm in diameter.