https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/7665440
Poster showing German soldiers nailing a man to a tree, as American soldiers come to his rescue. "Your Liberty Bond will help stop this - Sus bonos de la libertad ayudarán á dar fin con esto". Published in Manila by Bureau of Printing. Poster measures 72 by 56 centimetres (28 in × 22 in).
Original public domain image from Wikimedia Commons
Public DomainFree CC0 image for Personal and Business use