A vintage patent drawing depicts a steam locomotive in detailed mechanical cross-sections, rendered in sepia tones on aged paper with handwritten signatures and official notation at the top. Multiple engineering views show the locomotive from different angles alongside close-up diagrams of wheel mechanisms and mechanical components, creating a technical yet nostalgic composition that celebrates industrial innovation. Printed to order on a soft, absorbent mat with a no-slip backing, ready underfoot the moment you step out. The kind of art you don't expect on a bathroom floor.