4 original mid-century style posters, 1024x1536 PNG (2:3 portrait), in one ZIP. - DON'T CHATTER! Loose talk costs lives - THE ENEMY WEARS A FRIENDLY FACE - GUARD YOUR DOCUMENTS. Loose papers reach the front. - DOGGERLAND: vintage travel poster for the drowned North Sea land bridge (imaginative art, not a scientific map) Good for office/infosec awareness walls, classrooms, desktop wallpapers or small prints (up to ~5x7 in at 200 dpi). AI-assisted artwork with hand-set Anton headlines. Personal and non-resale use; README included.