This is an original gunpowder horn or flask from Germany (Bavaria?) or Low Countries - Circa 1580-1650 (late 16th to middle 17th century).
It is made of flattened cow horn and engraved on both sides. One side has a hunting scene and the other has a pattern of concentric circles.
It measures 12 inches end to tip and about 4 inches wide at the back end. It is flattened and measures 1 1/4 to 1 1/2 inches in depth.
It is in good condition overall, but there is a wooden butt plate on the back end. There are also minor cracks and losses as should be expected of a 400+ year old artifact..