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Douglas military planes production Title: He built his engineering genius into planes that are fighting our enemies on land and sea -
U. S. fighters tactic Title: Teamwork wins battles in the sky -
Junior Commando Course. Obstacle of Type Used in Army Training Are Laid Out on 100-yd Track for Toughening Boys of High-School Age Junior Commando Course. Obstacle of Type Used in Army Training Are Laid Out on 100-yd Track for Toughening Boys of High-School Age -
Toy gun blows bubbles Toy Gun Blows Bubbles -
Toy Soldiers Made by Cigarettes and Other Smokers' Materials Hobbyist Fashions Cigar-Butt Army -
Gas-raid shelters designed to protect pet dogs Gas-Raid Shelters Protect Pet Dogs -
Dogs trained by Polish Army Polish Army Trains Dogs to String Phone Lines -
Simplified Scale Model of the New Interceptor Fighter Simplified Scale Model of the New Interceptor Fighter. An incredibly Fast-Climbing Plane That Spells Death to Bombers -
Gas mask designed for babies Hoodlike Gas Mask Protects Babies -
New French air-raid shelter Air-Raid Vault Uses Chain of Gas Masks -
Miniature Models of US Destroyers and Submarines New U. S. Destroyers and Submarines. Miniature Water-Line Models Designed Especially for the Popular Science Model-of-the-Month Club -
Odd Shipyard Builds Vessels in Miniature Odd Shipyard Builds Vessels in Miniature -
Miniature Model of the Grumman F3F-1 Fighting Plane in Miniature. A Carefully Detailed Exhibition Model of the Speedy Grumman F3F-1 -
Model Maker Builds a Midget Navy Model Maker Builds a Midget Navy -
Miniature Model of the U. S. Aircraft Carrier Yorktown The New U. S. Aircraft Carrier Yorktown. A Miniature Model Designed Especially for the Popular Science Model-of-the-Month Club -
Miniature Model of the U. S. S. Philadelphia U. S. Light Cruiser 'Philadelphia' Class. A Miniature Model Designed Especially for the Popular Science Model-of-the-Month Club -
Miniature Models of the U. S. S. Washington and the U. S. S. North Carolina We Are First Again With Plans for Models of the New United States Superdreadnoughts Washington and North Carolina. Prepared Especially for the Popular Science Model-of-the-Month Club -
Making a Toy Gas Mask Making a Toy Gas Mask -
The Dove of Peace Is Resting, but the Doves of War Are Active Enough The Dove of Peace Is Resting, but the Doves of War Are Active Enough -
The Airship of Tomorrow The Airship of Tomorrow -
Is the Electric Airplane Possible? Is the Electric Airplane Possible? -
The "Helicopter", A Vertical Airplane The "Helicopter", A Vertical Airplane -
Guiding Airships With the "Radio Barrage" Guiding Airships With the "Radio Barrage". Invisible Walls of the Ether -
Sistema di salvataggio automatico Su di un sistema di salvataggio automatico -
La protezione della testa per mezzo del casco La protezione della testa per mezzo del casco