This is a new glass with new gasket attached. Glass is 3/16″ thick cut to 12 1/8″ wide and 13 7/8 tallest point, with an arch top and a notch in one corner. Side measurement is 10 1/2 fits the following stoves. We are a family-owned retail glass shop that has been in business since 1966! If you need a piece of glass we don’t carry, just message us and we will make you a custom ad.