Cross-Section of a Grenade
Instead of a standard bouchon assembly being used this grenade is equipped with a Percussion Plug Assembly, Mark I, containing the striker, primer and standard two inch length Bickford fuse. The grenade is ignited by means of first, removing the percussion cover of cap, then knocking or striking the head of the striker sharply against a hard object or against the body.
Lieutenant Colonel William E. Persons, Infantry Major Oliver S. Wood, Infantry Major Joseph Plassmeyer, Cavalry Captain Paul V. Kellogg and , Infantry First Lieutenant John E.McCammon Military Science and Tactics (, MO: The University Co-operative Store, 1922)
Courtesy the private collection of Roy Winkelman