While it's highly improbable for a single Standing Liberty quarter to be valued at over $100 million USD, there are several exceptionally valuable coins within this series that collectively hold immense worth.
1916 Standing Liberty Quarter: This coin, minted in a limited quantity of just over 52,000, is one of the rarest and most sought-after. Well-preserved examples can easily surpass $100,000 at auction
1. 1918/7-S Overdate Quarter: This error coin, where the 1918 date was struck over a 1917 die, is particularly rare and valuable, often reaching into the six-figure range for high-grade specimens.
1927-S Full Head Quarter: Coins with full head details are highly prized, as this feature often wore away quickly. High-quality examples of the 1927-S can command prices well above $100,000
1919-D Full Head Quarter: Another rare and valuable coin, especially in top condition, with full head details intact.
920-S Full Head Quarter: Known for its scarcity and value in high-grade condition, this coin is a gem for collectors, often exceeding $100,000