The 2019 UK Britannia 1oz Silver Proof Coin is a commemorative coin minted in England with a fineness of 0.999 silver. This uncirculated coin comes with a Certificate of Authenticity (COA) number 420 and is housed in its original packaging. Made in the United Kingdom, this coin holds significance within Europe’s numismatic world, making it a valuable collectible for coin enthusiasts and investors alike.