American troops in France receiving a lesson on gas and flame warfare. Each operator has his fire equipment slung across his back and holds the nozzle in hand. He is guarded by picked Poilus with rifles. The American officers closely watch the movements of the men

Title and notes from Red Cross caption card.
Photographer name or source of original from caption card or negative sleeve: International Film Service.
Group title: Soldiers, American, France.
Date based on date of negatives in same range.
Used in: Committee on Public Information.
Gift; American National Red Cross 1944 and 1952.
General information about the American National Red Cross photograph collection is available at http://hdl.loc.gov/loc.pnp/pp.anrc
Temp note: Batch 40