6 1/2" (16.5cm)
Powder flasks were made in a variety of shapes as well as materials. This flask has what is known as a “bag” shape . Bag flasks were some of the earliest metal powder flasks but remained in production well into the 1800s. For example, this flask was made by the high-end Sheffield, England firm of James Dixon & Sons during the second half of the nineteenth century. Due to their narrow shape, bag form flasks were unable to hold a large amount of powder and were often sold specifically to be used with pistols. It is also perhaps because of their slim shape that the majority of bag-shaped flasks were undecorated.
Gunpowder was sold in bulk and gunpowder flasks were used to carry gunpowder when out in the field.