This is a vintage amber glass apothecary bottle from Mallinckrodt, a renowned manufacturer in the United States. It's a medicine bottle with the featured refinement of a vintage apothecary bottle. The bottle contained sodium chloride USP and has a prescription Rx label on it.

The unique color and bottle type make it an excellent addition to any collection of modern medicine bottles. This vintage bottle is a must-have for collectors of apothecary bottles and those interested in the history of medicine. Make a great conversation piece.