A truck pulls an artillery gun closer to the front. (OSA, Oregon State Defense Council Records, World War I Photographs)

Soldiers pose on and next to a massive long range artillery gun moved on railroad lines. (OSA, Oregon State Defense Council Records, World War I Photographs)

French soldiers operate a mortar piece with shells ready to fire on the right. (OSA, Oregon State Defense Council Records, World War I Photographs)

Large artillery guns fire toward German positions. (OSA, Oregon State Defense Council Records, World War I Photographs)