Hello, My fiance and I recently found that she has 3 rolls of Sacagawea dollars that she received in a Cheerios box. In 200 she received a certificate to redeem $100 in the coins. She mailed that in and received 4 rolls ($25 each). Her brother took one and her mom still has her 3. She had no idea that they may be worth something until she searched it this morning. We have no idea if and what the odds are of any of the coins within the rolls having the rare pattern with the detailed tail feathers. We are not coin collectors and looking for ideas on how we should proceed trying to value the coins.