Factors that affect the value of a 1917 US cent:
Mint Mark: 1917 US cents were minted in three different mint facilities: Philadelphia, Denver, and San Francisco. Cents minted in Philadelphia do not have a mint mark, while cents minted in Denver have a "D" mint mark and cents minted in San Francisco have an "S" mint mark. Cents with the S mint mark are typically more valuable than cents with the D mint mark or no mint mark.
Condition: The condition of a coin refers to its overall physical appearance. Coins that are well-preserved and free from damage or wear are more valuable than coins that are worn, scratched, or damaged.
Rarity: Some 1917 US cents are rarer than others. The rarest 1917 cent is the 1917 doubled die cent, which has a doubled impression of the design. Doubled die cents are very valuable and can sell for thousands of dollars.
General Value of 1917 US Cents:
* Poor to Good Condition: $0.30 - $1.50
* Very Good Condition: $1.50 - $3
* Fine Condition: $3 - $5
* Very Fine Condition: $5 - $10
* Extremely Fine Condition: $10 - $15
* Uncirculated Condition: $15 - $30 (or more for rare varieties)