Description
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. Precision-cut from thick, satin-finish paperboard and made to order, in 500 or 1,000 pieces. An afternoon spent building an independent artist's work.