I am trying to raise some more funds for the National. Any info or idea of the value of this glass fire grenade? I was lucky enough to stumble upon this ribbed, Harden's Star glass fire grenade. Embossed: STAR (within the star) HARDEN'S HAND GRENADE (f) FIRE EXTINGUISHER (b) The color seems to be a mixed of peacock and electric blue. It has a concrete plug, some chipping of the glass around the mouth of the bottle, a crumbling stopper in the neck and it is filled with a clear fluid about 3/4 full. From my research, the fluid might be carbon tetrachloride or salt water. Next picture [id=93405552] Answers: One of the more common fire grenades; value is $75 - $200. Patented by Atterbury, owner of Atterbury Glass of Pittsburgh. Shards have been found at the Hemingray site in Muncie, IN but it is uncertain if they are there because they were used in fighting fires or if they also made some. Bottle collectors have told me that this one is filled with probably ammonia and salt water and not that nasty carbon tetrachloride. It is on the eBay place this week starting July 4th.