1 Crown - Elizabeth II Electric light bulb

The Isle of Man Treasury issued commemorative crowns prolifically through the 1990s, and this 1996 piece marks the centenary of Edison's commercially viable incandescent bulb reaching widespread domestic use. The island's treasury was notably aggressive in targeting thematic collector markets during this decade, producing dozens of commemorative crown types annually — a strategy that kept the series liquid but did little for long-term secondary market premiums.