This is a pair of hauptmann’s shoulder boards from Füsilier-Regiment Prinz Heinrich von Preußen (Brandenburgisches) Nr 35. This is one of the elite regiments in the German army in which Prinz Heinrich served as the Regimental Chef. These shoulder boards are of the sewn-in variety. It is clear that they have been removed from a tunic at some point. Each of the shoulder boards sports the gilt regimental number and a hauptmann’s twin, gilt pips.