The 1916 proof Buffalo nickel has a tiny mintage of only 600 pieces, the lowest of the series. The majority of 1916 proofs are found in the PR64-66 range, though several dozen have been certified by PCGS and NGC in PR67. Both firms have certified fewer than a combined dozen as PR68s. The 1916 proof Buffalo nickels were the last regular-issue proofs for the series until 1936, when the US Mint revived its proof coin program after a 20-year hiatus.