Popular Mechanics, v. 24 n. 5, 1915

https://books.google.it/books?id=td8DAAAAMBAJ&lpg=PA583&hl=it&pg=PA641#v=onepage&q&f=false

1915-11

Public Domain

World War I

Is Part Of
Title	Alternate label	Class
Wheeled body shield
The Dardanelles Net
Battery of rifles mounted on a trench
Rotary blowers
U. S. destroyer spreading a smoke screen
New type of dirigible made rigid by gas pressure
Lighting arrangement to assist airmen in landing
The U. S. subamrine "F-4"
A German sentry
Hand-held machine gun
Observation balloons
Artificial hands for German crippled soldiers
Electromagnet used to remove splinters from soldiers' eyes
Telephone used by Italian soldiers
Ambulance used by the Italians on the Alpine battlefront
Portable sausage factory
Sanitary corps disinfecting soldiers clothing
British soldiers training in the use of hand grenades
Grenade throwing training
Portable pump set for draining trenches
The U. S. battleship "Wyoming"
A new signaling system for the navy