All GOLD bars and Gold Coins direct deposit only Coinsplus bullion specializes in silver coins. We consider silver coins as a good investment and hedge against current world financial problems and many of our customers buy silver coins for this reason. Popular coin at present is the one kilo silver coin from Perth mint that is lunar kookaburra series or Koala. 5 and 10 ounce silver coins are popular with European buyers and always popular one ounce silver coin available as single coin or in plastic sealed roll of 20 coins or as tray of 100 silver coins.