This vintage Blackhawk Rock River Brewing Co beer bottle is a rare find for any collector of breweriana. With an amber color and a capacity of 8oz, this glass bottle dates back to the early 1900s. It has been previously owned but is in great condition for its age.

The bottle was manufactured in the United States and features the California Prop 65 Warning, although the exact details of the warning are unknown. This item would make a unique addition to any collection of beer bottles or breweriana.