The product is a vintage 1928-1930 Milk of Magnesia blue cobalt bottle manufactured by Chas. H. Phillips Chemical Co. in the United States. This medicine bottle features a classic design with a blue color and is a sought-after collectible item for those interested in vintage bottles and medicine memorabilia. It serves as a unique piece of history from the early 20th century, showcasing the unique style and craftsmanship of the time period. Found at an estate sale.