* Condition: The condition of the bill is one of the most important factors in determining its value. A bill that is in excellent condition, with no tears, stains, or creases, will be worth more than a bill that is in poor condition.
* Rarity: The rarity of the bill is also a factor in determining its value. The 1868 $100 bill is a rare note, and its value will increase as its rarity increases.
* Signature: The signature of the Treasurer of the United States on the bill can also affect its value. A bill that is signed by a famous or historical Treasurer of the United States will be worth more than a bill that is signed by a lesser-known Treasurer.
* Serial Number: The serial number of the bill can also affect its value. A bill with a low serial number will be worth more than a bill with a high serial number.
If you are interested in purchasing an 1868 $100 bill, it is important to do your research and find a reputable dealer. You should also get the bill appraised by a professional to ensure that it is genuine and in good condition.