A./T. Hand Grenade No. 73 Mk I (Obsolete)

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Description: This is a thin-walled grenade intended for use against armored forces vehicles, but mor generally used in demolition work. The grenade consists of a tin-plate container with a top of the same material, which screws onto the body by means of in-terrupted threads. A recess in the middle of the lid is threaded to take the Fuze No. 247. The fuze is cemented in position and issued with the grenade. The detonator tube screws into the lower portion of the fuze housing. A commercial Detonator No. 8 is used. A felt disc at the top of the filling absorbs any exudate from the explosive. A strip of ad-hesive tape secures the lid to the body on issue.

Operation: Before use, remove the adhesive tape, take off the lid, and unscrews the detonator holder. Insert the detonator, and replace the holder and lid. Then remove the adhesive tape from the fuze and unscrew the fuze cap. After the cap is removed, the safety tape must be held in place by the thumb and forefinger. When thrown, the weight on the end of the tape causes the tape to unwind and pull out the safety pin. Only the creep spring now separates the striker and primer cap. On impact, the striker is forced into the primer cap, which initiates the detonator and explodes the grenade.