1873 Shield Nickel. Close 3. Proof-66 Cameo (PCGS). CAC.Brilliant throughout with a nicely cameoed finish, this is a gorgeous example of both the type and issue. A fully struck, expertly preserved survivor from an unknown mintage that Q. David Bowers (2006) estimates at 1,500 to 2,000 Proofs.PCGS# 83827. NGC ID: 276P.