A fine English hunting or shooter's black powder flask, often used for muzzle-loading guns in the 19th century.
Of copper and brass, made in the Hawksley (Sheffield) or Sykes style, featuring a striated design on the pouch,
To pour a charge, one would cover the charger end with a finger, press the spring open with the thumb piece on the spring, tip powder into the charger, and slowly release the spring. Then a predetermined amount of powder would be tipped into the muzzle of the gun.
A great gift for the historical or hunting enthusiast.
Priced for individual sale: $395.