This clear liquor flask was recovered during excavations at historic Fort Hays in Ellis County by Kansas Historical Society archeologists in 1966. The flask was mouth blown with a cup bottom mold. It now has a striated patina across both sides of the flask, made by oxidation over time. The bottle maker's marks are visible on the bottom of the flask: I G Co. These were used by the Illinois Glass Co from 1880 to 1911. Fort Hays was added to the National Register of Historic Places in 1971 and is a State Historic Site.