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. Sewn from a durable canvas-like exterior with a soft lining and made to order, in three sizes up to one that fits a tablet. A catchall for toiletries, art supplies, or small electronics, carrying an independent artist's work instead of a plain zip bag.