A 1968 D dime in very good condition can fetch a maximum of $1, based on 2014 valuations. The $1 value generally applies to uncirculated coins, while lower-condition coins can be worth no more than their face value.
The U.S. Mint produced approximately 480.75 million 1968 dimes at the Denver mint facility. The coins have a copper core and a copper-and-nickel coating. The condition of the coin is based on the sharpness of its engravings and edges, its remaining sheen, and the absence of discolorations. Typically, the price of an older coin rises over time as it becomes increasingly rare.