He was a Norwegian arms inventor who developed a wide range of early prototypes which would later lead to the modern hand grenade for the military use.

[4] Other countries and leaders would also become interested in the weapon, with Russia ordering one million grenades and the Pope buying two thousand.

[5][6] The bomb was made of an 80mm x 105mm piece of iron based sheet metal forming the head with a 330mm wooden handle.

Italy would famously use them in early aerial bombardments; dropping them on the intended target from Italian military aircraft.

[1] The aerial bombs would make use of a highly sensitive contact exploder to minimize misfire potential.