In 1865, employees at the Philadelphia Mint struck off 500 Proof Two Cent pieces. Apparently, they are all of the Plain 5 variety, and at least two different die varieties are known. A high percentage of the mintage survives today -- PCGS alone has certified over 250 Proofs. Red-Brown seems to be the most common format and most Proofs are of the Brilliant version. Cameo Proofs are very rare and Deep Cameo Proofs are exceedingly rare, if they exist at all.