1877-S Liberty Head Half Eagle. AU-50 (PCGS).A generally sharp example with vivid medium gold surfaces and considerable luster remaining. The final low mintage San Francisco Mint issue in the Liberty Head half eagle series, the 1877-S was produced to the extent of just 26,700 pieces. There are few survivors, and with most grading VF or lower, this lively AU represents a significant find for the advanced gold specialist.