Check the listing for details. 2019 AMERICAN INNOVATION DOLLAR REVERSE PROOF NEW JERSEY. Listed at 20.00 USD. The United States Mint is proud to celebrate innovation and honor the spirit of America with the American Innovation $1 Reverse Proof Coin from the State of New Jersey— the third to be released in the series. It features an electric lightbulb, developed by Thomas Edison and his team of researchers, who made light bulbs available to the public. Prior to Edison and his researchers, earlier light bulbs from the 1830s had very short lifespans, used too much energy, or were simply too expensive to produce. By 1879, Edison and his team had managed to produce a bulb with a filament that could last 14.5 hours, and with continued work, they managed to improve to a filament with a lifetime of 1,200 hours. This marked the beginning of commercially manufactured light bulbs, giving people easy control over light in homes and businesses, drastically changing infrastructure, business, and society. Accompanied by a certificate of authenticity Note: Some boxes may show slight signs of wear due to shipping but the contents are guaranteed and each set is accompanied by a certificate of authenticity.