
Based on the provided information, the value of a 1964 silver dime can be understood through its numismatic and material worth. According to retailer Littleton Coin Company, a 1964-D Roosevelt dime, indicating it was struck at the Denver Mint, is listed at a price of $19.25 for a coin in average circulated condition.
The primary reason for this value, which is significantly higher than its ten-cent face value, is its composition. The year 1964 marks the final year that United States dimes intended for circulation were struck from 90% silver. As noted in the provided context, the U.S. Mint had produced silver dimes since 1796. However, due to increased demand for silver and a resulting coin shortage in the early 1960s, the composition of circulating coinage was changed.
This historical significance as the last 90% silver issue gives the 1964 dime a baseline value derived from its intrinsic silver content, often referred to as its "melt value." In addition to this bullion value, coins can carry a numismatic premium based on their condition, mint mark, and collector demand. The price listed by a coin company reflects both the material value and this numismatic premium. It is important to recognize that the price from a specific retailer represents a market price for that item and may differ from values found elsewhere.


