Sangster grenade. Marked on the body; SANGSTER / PATENT / RIFLE GRENADE . The socket of the striker holder is marked; SCREW (safety pin hole) DOWN TIGHTLY. There is a coating of tan paint underneath that orange paint. The orange paint is old. The throwing handle included with the grenade looks like the handle for a No.2 The thread of the handle is the typical rifle grenade rod thread. Is this a hand version of a Sangster grenade? Seems like it would take a motivated throw to get that wind vane moving.