The value of the 30mm bronze Dieci Centesimi coin that would have been in circulation in 1862 doesn't seem to have any particularly significant worth, with a listing on the auction site ebay listing the 1863 equivalent at €1.50 (with only 3h 53m 48s left!!). Of course, this could be down to a seller who hasn't done his homework or is unaware of the true value of the coin in his possession - which is why it is always worth doing a little bit of background research.
Many sources of information come at a price, with one relevant and fairly well recognized publication, the Krause Standard Catalogue of World Coins (1601-1700), retailing at $49.99. The cost of obtaining information about your coin's value is sometimes more costly than the amount you might eventually recoup from selling the coin itself although I'd argue that it's difficult to put a price on the thrill and enjoyment of a fascinating hobby.
An alternative to investing in a limited edition hardback would be to make use of the abundance of information on the internet. There are a number of sites that provide useful information, although some of them require registration for full access. One site I find quite useful is a website called Numista which hosts various catalogues and sources of information.
Another great idea would be to get involved in a social network group that has been purposely formed to discuss and share information on coin collecting. These kind of groups are very handy for providing everything from updates on auctions and coin-related investment opportunities through to heated debates on the value of certain coins.
