Original post here. Images are four posters containing the texts “Mustard gas: Smells like garlic…horseradish, mustard…strong vesicant. Phosgene: Smells like musty hay or green corn. Long irritant, causes increased dopey feeling, colorless gas. Chlorpicrin: it smelled like flypaper. Cough, cry, vomit, quiet, wash eyes, warmth. Lewisite: smells like geraniums. Nasal irritant, skin burns, gas mask, protective clothing, dark green oily liquid.” Sourced to compoundchem via gotham-city-hardcore.