Vintage mid-century cast iron white porcelain single basin drop-in kitchen sink. Nice smaller 18x12 size to use as a food, vegetable or bar prep sink.  It is marked American Radiator & Standard Sanitary c.1940s. It does show normal wear, there are light scratches. The porcelain looks great, has a very nice high glossy shine that is usually worn away on these old sinks. Overall, very good, salvaged condition. Please be sure to look over all of the pictures as they are the best description. Feel free to ask questions when needed. Thanks for looking!