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. Printed on premium ceramic and made to order, dishwasher and microwave safe, with the artwork wrapping a full 360 degrees. The first cup of the day carrying an artist's point of view instead of a logo.