VERY rare model 1847 pre-WWI ball hand grenade. The Model 1847 Grenade is a cast iron sphere 81mm in diameter and 9mm thick. The interior is smooth and the rocket port has no threads. The grenade is very heavy and the grenade range was rarely over 20 meters. It was possible to add 50 meters to this range by using a sling. It was supplied to French soldiers until 1914. Very good. Inert.