a German 42 cm Gamma howitzer (also known as a Gamma-Gerät), a massive heavy siege mortar built by Krupp during World War I.

a vintage World War I postcard illustration of a French soldier created by the artist Émile Dupuis (1877-1956).

a French mountain artillery battery with a Canon de 65 mm de montagne modèle 1906 (designed by Schneider-Ducrest) and its crew, likely photographed around World War I.

French cavalry escorting German POWs August 1914.

roll call of the 2nd Battalion, Scots Guards on the Ypres-Menin Road on October 27, 1914, during the First Battle of Ypres.

Imperial Russian troops guard German POWs. The lowest rank of the Tsar’s Army were ryadovoy.

ripstefano: An Old Woman Selling Cakes Amid the Falling Houses of Verdun, illustration from Brave Deeds by Brave Men by C. Sheridan Jones, pub. 1922

hiddenwwi: Fire control machinery for large canon at Fort Douaumont on the Verdun battlefield

An Austro-Hungarian machine gun unit, probably on the Eastern Front, 1917.

French ‘zouaves’ of the 'Armee d'Afrique’

a French World War I propaganda poster titled “Saluez! ! ! C'est Verdun!” (Greet them! It is Verdun!) promoting L'Almanach Vermot for 1917, featuring an illustration of fallen soldiers by artist Ch. Atamian.