1852-C Liberty Head Half Eagle. AU Details--Cleaned (NGC).The mintage of 72,574 pieces for the 1852-C is the second highest half eagle production run at the Charlotte Mint. Thanks in part to a pair of small hoards that have come out since the mid-1980s, this date is only moderately scarce in AU grades, making it well suited to represent the Charlotte Mint in a set of Liberty Head half eagles composed of an example from each issuing mint.