Original U.S. WWI Extremely Rare Inert Mk. I Defensive Grenade with Original Fuse and Lever Japanese Antique Guns This routine was broken in

This routine was broken in October and November 1913 by a five-week voyage to France

Straight out of an old collection

Those commissions would be for the duration of a specific cruise

encountering heavy resistance as well

in cooperation with the Red Cross

Original U.S. WWI Extremely Rare Inert Mk. I Defensive Grenade with Original Fuse and Lever Japanese Antique Guns This routine was broken inOriginal Item. Only One Available. The Mk 1 grenade (sometimes spelled Mk I) is a fragmentation hand grenade used by American forces during World War I. According to its designers, it was to be the "simplest", yet most "fool proof", grenade ever made. However, some major problems appeared when the grenade was used in the field. It was retired from service before the war ended, replaced in 1918 with the improved Mk 2 grenade used through World War II.