How much is a 1912 Serbian 1 dinar coin worth?

There were 8 million of these 1 Dinar coins featuring King Peter I (1903-18) minted that year. It contains .1342 of an ounce of silver and it may currently be worth about $3 with heavy wear to around $6 with moderate wear to maybe $15 with light wear. You might also try a library for a copy of the Standard Catalog of World Coins for pictures, values and lots more interesting info. Brad