Some of the types of coins used for investments in metals include: antique coins (because the inherent collector value may exceed the meltdown value); newly minted gold coins, such as the American Eagle, Canadian Maple Leaf, South African Krugerrand, British Sovereign, Vienna Philharmonic, Mexican Gold 50 Pesos, and U.S. Mint 24K Gold Buffalo; minted platinum coins, such as the American Platinum Eagle, Australian Koala, and Canadian Maple Leaf; minted palladium coins, such as the palladium Canadian Maple Leaf; and minted silver coins, such as the Canadian Silver Maple Leaf, Silver American Eagle, and the Austrian Vienna Philharmonic. Some investors prefer to acquire bullion or bars of precious metals that are minted by some governments and companies, such as Johnson Matthey, Wall Street Mint, Credit Suisse, Engelhard, Produits Artistiques Métaux Précieux (PAMP), Sunshine Minting, and Pan American Silver.