1. 1877 Seated Liberty Dollar (No Mintmark):
- Average Condition (worn details, scratches, visible wear): $65 - $120
- Fine Condition (light wear, some mint luster remaining): $120 - $280
- Very Fine Condition (minimal wear, noticeable mint luster): $280 - $500
- Extremely Fine Condition (very fine details, significant mint luster): $500 - $800
- Uncirculated Condition (no wear, full mint luster): $800 and above
2. 1877 Seated Liberty Dollar (with "CC" Mintmark):
- Average Condition: $220 - $350
- Fine Condition: $350 - $580
- Very Fine Condition: $580 - $850
- Extremely Fine Condition: $850 - $1,300
- Uncirculated Condition: $1,300 and above
The "CC" mintmark indicates that the coin was minted at the Carson City Mint. Coins with mint marks tend to be scarcer and are often more valuable than those minted in Philadelphia (no mintmark).
As always, the actual value of your specific coin may vary based on additional factors such as certification from reputable grading services like the Professional Coin Grading Service (PCGS) or Numismatic Guaranty Corporation (NGC) and market demand. Having your coin professionally graded can help ensure its authenticity and potentially increase its value for collectors.