The Knight is facing the sinister side. Don't really matter which side of the shield you are on sinister is the left face of the shield. The right side is called dexter and the left sinister. " * heraldry (in heraldry: The elements and grammar of heraldic design)
The terms dexter and sinister mean merely “right” and “left.” A shield is understood to be as if held by a user whom the beholder is facing. Thus the side of the shield facing the beholder’s left is the dexter, or right-hand side, and that opposite it is the sinister, or left-hand side." (Britanica)
Just thought it was interesting