Original French WWI Model 1915 Bertrand Suffocante Gas Grenade Bira Gun The flag is signed with

The flag is signed with the names of many friends and family

and the "P" overpressure proof under the wrist is still visible

possibly from a previous research attempt

both versions being produced locally in the UK in several variations

and Meuse-Argonne Offensives

Original French WWI Model 1915 Bertrand Suffocante Gas Grenade Bira Gun The flag is signed withOriginal Item. Only One Available. This is a scarce example of a Bertrand gas grenade, made of six iron segments, each of them drilled with a hole and having four pins on the inside. They were held together with a steel wire and contained a glass ball with chloroacetone. These were not popular among troops due to the gas breaking while being thrown. Like all deactivated ordnance, this grenade is Not Available for Export. This example is in good shape