A vintage patent diagram for an early computing device fills the composition with precise technical drawings rendered in black ink on aged cream paper, its architectural blueprint style broken into numbered figures showing mechanical components, gears, and detailed cross-sections. The document bears handwritten signatures and bears the patina of history, capturing the austere elegance of nineteenth-century industrial artwork with its formal layout and meticulous line work. 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.