1857-S $20 Liberty PCGS MS64. Variety 20A Spiked Shield. Ex: S.S. Central America. SSCA 2096. CAC endorsed. A satiny, medium gold specimen with a wealth of orange iridescence on minimally marked surfaces. Choice for the grade; we have all seen coins of equal quality assigned much finer grades.The Spiked Shield variety with two raised diagonal die lines upward from the viewer’s lower left corner of the reverse shield. A nice opportunity for a collector interested in a high-grade example of the date or for those who appreciate “treasure” coins.