A detailed patent drawing of a nineteenth-century steam locomotive engine dominates this composition, rendered in crisp white lines against a rich cobalt blue grid background. Multiple technical views show the engine from different angles alongside cross-sections and mechanical components, capturing both the ingenuity of industrial artwork and the romance of the steam age. 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.