1860-S Liberty Seated Quarter. Briggs 1-A, the only known dies. VF Details--Repaired (PCGS). With a mintage of only 56,000 pieces, the 1860-S Liberty Seated quarter is a well-known rarity in all grades. Struck to meet the needs of a West that was starved for small change, these coins were not saved but rather saw heavy commercial use. Most survivors are found well worn, impaired or both. Even in a details holder, the present example certainly has much to offer advanced Liberty Seated quarter enthusiasts. From the Lincoln Square Collection.