Andersen&reg; Sill Hinge Lh Stainless Steel Finish - (1966 to Present) Works with Perma-Shield Casement Windows manufactured from 1966 to Present. This hinge is for a left hand unit. From outside of your home the hinge will be on the left side. If your left hand sill hinge is an older style and does not look like the hinge that is pictured then you will also need to purchase the left hand head hinge part number 1361463.