Mintage 4000 Worldwide: Includes black light flashlight. 1OZ Pure Silver Proof Glow-in-Dark.One of the best government-documented UFO crashes in. The case remains open and unsolved. Original condition encapsulated with certificate authenticity & case/box. The item "2019 UFO Shag Harbour Incident Unexplained Phenomena $20 Silver Glow-Dark Coin" is in sale since Wednesday, September 25, 2019. This item is in the category "Coins & Paper Money\Bullion\Silver\Coins". The seller is "mario95coin" and is located in Ontario. This item can be shipped worldwide.