EQUIPMENT. Blue glass fluted HARDEN fire extinguisher grenade, marked "Star". Circa 1880-1900. TBE Fire extinguishing grenade developed by Henry Harden in 1871, the advertisement stated: "Harden's Star hand grenade will save your life and property in the event of fire. If broken, the liquid containing the chemical in the bottle will extinguish the fire immediately! The contents of the balloon will not freeze or deteriorate over time."