A technical patent drawing of a light bulb dominates this blueprint composition, rendered in crisp white lines against a deep blue gridded background. Three detailed cross-section views show the bulb's internal mechanisms and assembly details, accompanied by handwritten signatures and official patent markings in the classical scientific illustration style. Crafted from durable canvas-like poly-poplin and made to order, double-stitched with a cotton webbing strap. The everyday haul, from groceries to the beach, carrying an independent artist's work.