As part of the numismatic, coin, crowns, and collectible community, we'd like to offer up the following recommended resources.
The American Numismatic Society is an organization dedicated to the study of coins, currency, medals, tokens, and related objects from all cultures, past and present. The Society's headquarters in New York City has the foremost research collection and library specialized in numismatics in the United States. These resources are used to support research and education in numismatics, for the benefit of academic specialists, serious collectors, professional numismatists, and the interested public.
Kitco is a Canadian company that buys and sells precious and other metals such as copper, silver and gold. It also maintains live quotes and charts for metal prices.The company was founded in 1977 by Bart Kitner using a loan of C$700. It initially operated from Kitner's apartment in Peel Street, Montreal. In 1983, it moved into its own office and in 1989 it moved to its present offices in Cathcart Street, Montreal. Today, Kitco has offices in Montreal, Canada and New York, United States, as well as a significant Internet presence. As of 2008 its website was ranked second only to Wikipedia in searches for the terms gold and silver.
With more than 20 million coins graded commanding a total value over $20 billion, Professional Coin Grading Service (PCGS) represents the industry standard in third-party certification. PCGS provides impartial grading and authentication by the world’s top experts, incomparable value – PCGS-certified coins are known for realizing top prices, everything you need to know about coin grading.