Original U.S. WWII Inert Early-Pattern Mk II “Pineapple” Fragmentation Grenade - Inert German Navy - Kreigsmarine The Signal Corps branch insignia

The Signal Corps branch insignia is represented by two signal flags crossed

and also a KURIKATA knob

the XM148 was replaced by AAI Corporation's conceptually similar M203 design

which are retained by plastic buttons on the interior

Original U.S. WWII Inert Early-Pattern Mk II “Pineapple” Fragmentation Grenade - Inert German Navy - Kreigsmarine The Signal Corps branch insigniaOriginal Item. Only One Available. This is a very nice U. S. early pattern Mk II fragmentation hand grenade, commonly known to collectors as the Pineapple grenade. This example has been rendered completely inert for collector display and retains its cast iron body, fuze assembly, safety lever, safety pin, and pull ring. Especially desirable is the early style grenade body, which retains the characteristic slotted filling plug in the base and is marked