1889 Morgan Silver Dollar:
- Well-worn: $25 - $50
- Fine condition: $50 - $80
- Very fine condition: $80 - $150
- Extremely fine condition: $150 - $250
- Uncirculated condition: $250 - $500
1890 Morgan Silver Dollar:
- Well-worn: $20 - $40
- Fine condition: $40 - $70
- Very fine condition: $70 - $120
- Extremely fine condition: $120 - $200
- Uncirculated condition: $200 - $400
Please note that these values are approximate and can fluctuate based on market conditions and the specific characteristics of the coins (e.g., mint errors, toning, etc.). To obtain a precise valuation, it's best to consult with a professional coin dealer or numismatic expert.