12/3/20 - This is a US MK 2 grenade from WW2 with two trap fuses. The grenade is inert and the top screws off. The exterior of the grenade shell has light surface rust throughout, as shown. The top of the grenade shows traces of yellow paint, which indicates this is WW2 era and used in the pacific. The additional fuses shown are two different styles, and also non-functional. A cool piece of US history.