Bold Dutch lettering warns “WERKT NOOIT ZONDER DE BEVEILIGING” (“Never work without the safety guard”), setting an urgent tone before the eye drops to a razor-toothed circular saw rendered as an ominous gray disc. At its center, a hand reaches toward danger, with red accents at the fingertips suggesting injury or a near miss. Herman Heyenbrock’s 1928 poster relies on stark contrast—industrial metal against a fiery red halo—to turn a workshop hazard into an unforgettable graphic symbol.
Rather than celebrating machinery’s power, the design emphasizes vulnerability and consequences, a hallmark of early industrial safety messaging. The saw’s serrated edge forms a visual trap, while the isolated hand reads like a cautionary example stripped of distracting context. The typography and simplified shapes align with interwar poster aesthetics, where clarity and impact mattered as much as artistry.
Lower text points to the Veiligheidsmuseum in Amsterdam and mentions various safety devices for circular saws, grounding the image in a broader campaign of workplace accident prevention. As a piece of vintage safety poster art, it speaks to a moment when factories and workshops were modernizing rapidly—and when public education was a key tool for reducing injuries. For collectors and historians of graphic design, labor history, and industrial heritage, this 1928 Heyenbrock poster remains a striking intersection of warning, persuasion, and visual craft.