* Condition: The condition of the coin is one of the most important factors in determining its value. Coins that are in excellent condition, with no scratches or other damage, will be worth more than coins that are in poor condition.
* Rarity: The rarity of the coin is also an important factor in determining its value. Coins that are rare will be worth more than coins that are common.
* Type of coin: There are different types of gold coins that were minted in 1884, including the $20 gold piece, the $10 gold piece, and the $5 gold piece. The type of coin will also affect its value.
* Mint: The mint that produced the coin can also affect its value. Coins that were minted at the Philadelphia Mint are typically worth more than coins that were minted at other mints.
Overall, the value of an 1884 gold coin depends on a number of factors, including its condition, rarity, type of coin, and mint. A professional numismatist can help you determine the value of your coin.