Hello, Recently I turned to some premium issues of coins. Started collecting Tiffany series, Masterpieces of Art series and am looking for some more interesting coins and places to purchase them, for the hobby isn’t quite cheap 1. How your opinion about such dealers as PowerCoin, The Coin Shoppe, TWC (TopWorldCoins), Dazzling Coins and Art in Coins. 2. Have any one heard about new Mint in Poland "Mint21" ?? Some of their products is Apocalypse, Spartan Hoplite, Mercury, BinaryBull. Thanks for any advice!