Surface dirt and grim. Canvas is glued to masonite. The extreme edges of the canvas does not align with the edge of the frame and a few minor tears at the very extreme edge.
Reframing would hide the edge issues. Would benefit from a light cleaning and reframed.
Corcos paints what appears to be the northern part of Central Park from an elevated view looking northwest. The artist used a restricted palette of warm browns and grays with heavy outlines. She was a leading modern American primitivist. She has had numerous museum shows including the Whitney Biennial. Period frame.