Angular Sash Paintbrush. ca. 1938, USA, ANGULAR SASH TOOL by ELDER & JENKS, Philadelphia, Pa. Over 144 Years Brush Making Experience In This Tool. Traces easily and accurately around difficult trims - without leaving paint on the glass. Saves considerable tracing time. The beveled bristle spreads paint evenly. The cup chiseled edge gets down into all recesses. Handle clear, lacquered and expertly balanced. Every painter will use them. No painter will ever be without one after once he uses it. MO