War World I Greeting Cards

Robert Baden Powell

Canadian School

Nick Downes

Unknown artist

Ed Jackson

Howard Chandler Christy

Mountain Dreams

George Booth

Celestial Images

American School

English School

Ed Jackson

Andrew Howat

Science Source

Edward Fielding

Library of Congress/Central News, The War of the Nations, New York Times

National Media Museum/Australian War Records Section

Library of Congress/Underwood & Underwood, War of the Nations, New York Times

Library of Congress/French official photograph, War of the Nations, New York Times, 1919

Library of Congress/Underwood & Underwood, War of the Nations, New York Times

Library of Congress/Underwood & Underwood, War of the Nations, New York Times, 1919

Library of Congress/International News Service, The War of the Nations, New York Times

Us National Archives/science Photo Library

Wade Meyers

George Derville Rowlandson

Howard K. Elcock

Jan van Chelminski

War Is Hell Store

Cyrus Cuneo

Cyrus Cuneo

Vintage Treasure

Vintage Treasure

David Sipress

War Is Hell Store

Album

War Is Hell Store

War Is Hell Store

Maurice Louis Henri Neumont

Helene Schjerfbeck

AP photograph

Deutsches Bundesarchiv

Eastman Johnson

Kurt Miller

Marilyn Smith

Bob Orsillo

English School

War Is Hell Store

War Is Hell Store

Anna W

Edward Fielding

Anonymous

Maik Banks

Mark Rogan

Wilf Hardy

Charles Taylor

Pat Speirs

The Advertising Archives

Underwood Archives

Pat Nicolle

War Is Hell Store

Mountain Dreams

Pat Speirs

War Is Hell Store

War Is Hell Store

War Is Hell Store

War Is Hell Store

War Is Hell Store

War Is Hell Store

Marilyn Smith

Wade Meyers

Otto Dix