Dial glass for DeWald A-501 - there were several versions of this model - this dial is for the earlier version (circa 1938). 7.0" W x 1.5" H x .094" thick (nominal). Note: This dial is FLAT GLASS not convex. Also many catalin cabinets have shrunk over time and may impact size of glass dial that will fit. Contact us if you have a concern in this regard. If you need the cream/beige version of the A-501 dial, please see our DG-540.