
The 21 centimeter shell had the letters G-Z and a letter on the base of the fuze that was unrecognizable. There was a booster that contained 18 grams of picric acid. Following the booster was a long central burster made of steel that contained TNT. This projectile had a cement seal below the booster and another one at the base of the burster tube. This projectile had one driving band. The drawing shows the rotating band engraved; however, it could not be verified whether the engraving on the rotating band was factory made.
No information about functioning.
No information about hazardous components.
Nothing else to see.
Old Chemical Weapons Reference Guide (1998)