Vintage brass black powder flask marked C. & J.W. Hawksley, Sheffield, a respected English maker of antique shooting accessories and sporting goods. The flask shows an attractive aged patina consistent with its age and has not been polished, preserving its vintage character. The original spout assembly is present, and the maker's mark is clearly visible. It would make an excellent addition to a collection of antique firearms accessories, black powder memorabilia, or English sporting antiques.