Hazardous Material Warning Labels / Placards / Stickers

This collection consists of three diamond-shaped hazardous material warning placards or labels, appearing to be official DOT (Department of Transportation) or similar regulatory safety signage.

Based on the visible ruler in the image, each placard measures approximately 4 inches × 4 inches (10cm × 10cm).

N. Olmsted Cleanout

March 11, 2026