Original U.S. Korean War Inert M29 Practice Energa AT Rifle Grenade Trainer and Vietnam War Inert Practice M31 HEAT Anti-Armor Rifle Grenade Trainer - 2 Items Historical Military Books it is constructed entirely of

it is constructed entirely of what looks to be black cotton and wool

though it does show wear and tear

The underside of the rim is faintly stamped FS 163 and having split rivets attaching the chin-strap bales indicating that the shell is one of the 400

Photographs of these markings appear in book referred to below on page 12

Original U.S. Korean War Inert M29 Practice Energa AT Rifle Grenade Trainer and Vietnam War Inert Practice M31 HEAT Anti-Armor Rifle Grenade Trainer - 2 Items Historical Military Books it is constructed entirely ofOriginal Items: Only One Lot of 2 Available. These are a pair of fantastic rifle grenades, complete with their original blue paint and arsenal markings! Both are completely inert and in total compliance with the current BATF standards governing ordnance. They cannot be used as a destructive device and are not available for export. The Trainers In This Lot: U. S. Korean War Inert M29 Practice Energa AT Rifle Grenade Dated 1952: This Practice AT rifle