Wagner Ware Sidney Cast Iron Stove Top Griddle or Lid

The item is a rectangular piece of cast iron, likely a griddle plate or a large stove lid, given its dimensions and markings. It appears to be roughly 15-18 inches in length and 8-10 inches in width from proportional estimation against the hand holding it. The material is heavily oxidized cast iron, presenting a dark gray to black patinated surface with significant areas of rust pitting and buildup, indicating considerable age and exposure to moisture. The surface texture is uneven and rough due to corrosion. The edges are rounded, suggesting it was cast with a specific purpose. Prominently embossed on one side is the manufacturer's mark: "WAGNER WARE" set above "SIDNEY". The 'W' in Wagner is stylized and elongated, a common feature of Wagner Manufacturing Co. products. Below 'SIDNEY' is a number '10', possibly indicating a size or model number. Towards the bottom right corner, another embossed number '378' is visible, which could be a pattern number or mold identification. The raised lettering and numbers show good definition despite the surface corrosion. Visible condition issues include widespread surface rust, pitting, and what appears to be old grease or carbon buildup embedded within the corrosion. There are no apparent cracks or breaks, suggesting the structural integrity of the cast iron is still maintained, though it would require significant restoration (e.g., rust removal, seasoning) to be functional for cooking. The overall appearance strongly suggests this is an antique piece of cookware or a component from an old heating appliance. The craftsmanship is typical of early to mid-20th-century cast iron manufacturing, where items were robustly made for durability. The quality indicators point to its origin from a reputable cast iron manufacturer, Wagner Ware, known for producing high-quality kitchenware.