Question: what are the most valuable dollar coins?
Answer: 1794 Flowing Hair Dollar. Mint mark: No mint mark. Face value: $1. ... , 1913 Liberty Head Nickel. Mint mark: None. Face value: $.05. ... , 1870 S Seated Liberty Dollar. Mint mark: S. Face value: $1. ... , 1927 D St Gaudens Double Eagle. Mint mark: D. Face value: $20. ... , 1838 O Capped Bust Half Dollar. Mint mark: O.