1. Condition: The condition of a coin is one of the most important factors in determining its value. A coin in mint state (MS) or proof condition is worth more than a worn coin. MS coins show no signs of wear, while proof coins are struck multiple times and have a mirror-like finish.
2. Variety: There were three different varieties of dimes minted in 1961, each with its own distinct characteristics:
- Regular Strike: This is the most common variety and has no special features.
- Proof Strike: Proof coins are specially minted with a polished surface and sharp details. They are typically sold in sets and are worth more than regular strikes.
- Special Mint Set (SMS): SMS dimes were minted with a special matte finish and were only available in mint sets. They are rarer and more valuable than regular or proof strikes.
3. Mint Mark: Dimes minted in 1961 were produced at three different mint facilities: Philadelphia (no mint mark), Denver (D), and San Francisco (S). Dimes with a D or S mint mark are scarcer than those without a mint mark and may command a higher premium.
4. Historical Significance: The 1961 dime is not particularly rare or historically significant. However, certain varieties or error coins may have additional value to collectors.
In general, a 1961 US dime in good condition is worth around its face value of 10 cents. However, a mint state or proof specimen, especially in the SMS variety, can be worth several dollars or more depending on its condition and desirability to collectors.