Early settlers in the Arkansaw territory would have used a horn to store gun powder. The horns were made of cow, ox, or buffalo horn. These replicas are made of domesticated water buffalo horn (not an endangered species) resulting in natural variation on each horn. They are hollow inside and have plugs are made from wood and leather straps.
The horns measure 8-10" from plug to plug. They are approximately 6-7" in circumference around the thickest part.
If your young historian enjoys dressing up as a pioneer such as Davy Crocket, this would be a perfect addition.