The 1877 is a scarcer date in the Proof Three Cent Nickel Series, from a mintage of only 510. Scarcity gradually increases from PR60 through PR67 without any major price jumps. Gems would be considered rare with high-end gems being very difficult to locate. Examples with eye catching color and notable strikes can be found with some serious searching. Cameos and deep cameos are extremely rare and bring a hefty premium.